
Precalculus
11th Edition
ISBN: 9780135189405
Author: Michael Sullivan
Publisher: PEARSON
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Textbook Question
Chapter 8.5, Problem 11AYU
Rework Problem 7 under the same conditions, except that at time
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(7) (12 points) Let F(x, y, z) = (y, x+z cos yz, y cos yz).
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(a) (4 points) Show that V x F = 0.
(b) (4 points) Find a potential f for the vector field F.
(c) (4 points) Let S be a surface in R3 for which the Stokes' Theorem is valid. Use
Stokes' Theorem to calculate the line integral
Jos
F.ds;
as denotes the boundary of S. Explain your answer.
(3) (16 points) Consider
z = uv,
u = x+y,
v=x-y.
(a) (4 points) Express z in the form z = fog where g: R² R² and f: R² →
R.
(b) (4 points) Use the chain rule to calculate Vz = (2, 2). Show all intermediate
steps otherwise no credit.
(c) (4 points) Let S be the surface parametrized by
T(x, y) = (x, y, ƒ (g(x, y))
(x, y) = R².
Give a parametric description of the tangent plane to S at the point p = T(x, y).
(d) (4 points) Calculate the second Taylor polynomial Q(x, y) (i.e. the quadratic
approximation) of F = (fog) at a point (a, b). Verify that
Q(x,y) F(a+x,b+y).
=
(6) (8 points) Change the order of integration and evaluate
(z +4ry)drdy .
So S√ ²
0
Chapter 8 Solutions
Precalculus
Ch. 8.1 - In a right triangle, if the length of the...Ch. 8.1 - If is an acute angle, solve the equation tan= 1 2...Ch. 8.1 - If is an acute angle, solve the equation sin= 1 2...Ch. 8.1 - True or False sin 52 =cos 48Ch. 8.1 - Prob. 5AYUCh. 8.1 - When you look up at an object, the acute angle...Ch. 8.1 - Prob. 7AYUCh. 8.1 - Prob. 8AYUCh. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - In Problems 9-18, find the exact value of the six...
Ch. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - Prob. 16AYUCh. 8.1 - In Problems 9-18, find the exact value of the six...Ch. 8.1 - Prob. 18AYUCh. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - Prob. 22AYUCh. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 19-28, find the exact value of each...Ch. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - Prob. 32AYUCh. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - Prob. 34AYUCh. 8.1 - Prob. 35AYUCh. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - Prob. 38AYUCh. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - In Problems 29-42, use the right triangle shown...Ch. 8.1 - Prob. 41AYUCh. 8.1 - Prob. 42AYUCh. 8.1 - Geometry The hypotenuse of a right triangle is 5...Ch. 8.1 - Geometry The hypotenuse of a right triangle is 3...Ch. 8.1 - Geometry A right triangle has a hypotenuse of...Ch. 8.1 - Geometry A right triangle has a hypotenuse of...Ch. 8.1 - Geometry A right triangle contains a 25 angle. (a)...Ch. 8.1 - Geometry A right triangle contains an angle of 8...Ch. 8.1 - Finding the Width of a Gorge Find the distance...Ch. 8.1 - Finding the Distance across a Pond Find the...Ch. 8.1 - The Eiffel Tower The tallest tower built before...Ch. 8.1 - Finding the Distance of a Ship from Shore A person...Ch. 8.1 - Finding the Distance to a Plateau Suppose that you...Ch. 8.1 - Finding the Reach of a Ladder A 22-foot extension...Ch. 8.1 - Finding the Angle of Elevation of the Sun At 10 AM...Ch. 8.1 - Directing a Laser Beam A laser beam is to be...Ch. 8.1 - Finding the Speed of a Truck A state trooper is...Ch. 8.1 - Security A security camera in a neighborhood bank...Ch. 8.1 - Parallax One method of measuring the distance from...Ch. 8.1 - Parallax See Problem 59. 61 Cygni, sometimes...Ch. 8.1 - Washington Monument The angle of elevation of the...Ch. 8.1 - Finding the Length of a Mountain Trail A straight...Ch. 8.1 - Finding the Bearing of an Aircraft A DC-9 aircraft...Ch. 8.1 - Prob. 64AYUCh. 8.1 - Niagara Falls Incline Railway Situated between...Ch. 8.1 - Willis Tower Willis Tower in Chicago is the second...Ch. 8.1 - Constructing a Highway A highway whose primary...Ch. 8.1 - Photography A camera is mounted on a tripod 4 feet...Ch. 8.1 - Finding the Distance between Two Objects A blimp,...Ch. 8.1 - Hot-Air Balloon While taking a ride in a hot-air...Ch. 8.1 - Mt. Rushmore To measure the height of Lincoln’s...Ch. 8.1 - The CN Tower The CN Tower, located in Toronto,...Ch. 8.1 - Chicago Skyscrapers The angle of inclination from...Ch. 8.1 - Estimating the Width of the Mississippi River A...Ch. 8.1 - Finding the Pitch of a Roof A carpenter is...Ch. 8.1 - Shooting Free Throws in Basketball The eyes of a...Ch. 8.1 - Geometry Find the value of the angle in degrees...Ch. 8.1 - Surveillance Satellites A surveillance satellite...Ch. 8.1 - Calculating Pool Shots A pool player located at X...Ch. 8.1 - One World Trade Center One World Trade Center...Ch. 8.1 - Challenge Problem Drive Wheel of an Engine The...Ch. 8.1 - Challenge Problem Rework Problem if the belt is...Ch. 8.1 - Explain how you would measure the height of a TV...Ch. 8.1 - The Gibb’s Hill Lighthouse, Southampton, Bermuda...Ch. 8.1 - Prob. 86AYUCh. 8.1 - Find the exact value of .
Ch. 8.1 - Prob. 88AYUCh. 8.1 - Solve 2sin2sin+5=6for02.Ch. 8.1 - Prob. 90AYUCh. 8.1 - Prob. 91AYUCh. 8.1 - Prob. 92AYUCh. 8.1 - Prob. 93AYUCh. 8.1 - Prob. 94AYUCh. 8.1 - Prob. 95AYUCh. 8.2 - The difference formula for the sine function is...Ch. 8.2 - Prob. 2AYUCh. 8.2 - Approximate sin40andsin80.Ch. 8.2 - Prob. 4AYUCh. 8.2 - If none of the angles of a triangle is a right...Ch. 8.2 - For a triangle with sides a, b, c and opposite...Ch. 8.2 - Multiple Choice If two angles of a triangle...Ch. 8.2 - Prob. 8AYUCh. 8.2 - True or False The Law of Sines can be used to...Ch. 8.2 - Triangles for which two sides and the angle...Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems 9-16, solve each triangle.Ch. 8.2 - In Problems , solve each triangle.
Ch. 8.2 - In Problems 17-24, solve each triangle. A= 50 ,...Ch. 8.2 - In Problems 1926, solve each triangle....Ch. 8.2 - In Problems 17-24, solve each triangle. A= 70 ,...Ch. 8.2 - In Problems 17-24, solve each triangle. A= 110 ,...Ch. 8.2 - In Problems 17-24, solve each triangle. B= 10 ,...Ch. 8.2 - In Problems 17-24, solve each triangle. A= 40 ,...Ch. 8.2 - In Problems 17-24, solve each triangle. B= 20 ,...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems 2738, two sides and an angle are...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems , two sides and an angle are given....Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems , two sides and an angle are given....Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - In Problems 2738, two sides and an angle are...Ch. 8.2 - In Problems 25-36, two sides and an angle are...Ch. 8.2 - Finding the Length of a Ski Lift Consult the...Ch. 8.2 - Finding the Height of a Mountain Use the...Ch. 8.2 - Finding the Height of an Airplane An aircraft is...Ch. 8.2 - Finding the Height of the Bridge over the Royal...Ch. 8.2 - Land Dimensions A triangular plot of land has one...Ch. 8.2 - Distance between Runners Two runners in a marathon...Ch. 8.2 - Landscaping Pat needs to determine the height of a...Ch. 8.2 - Construction A loading ramp 10 feet long that...Ch. 8.2 - Prob. 47AYUCh. 8.2 - Prob. 48AYUCh. 8.2 - Rescue at Sea Coast Guard Station Able is located...Ch. 8.2 - Prob. 50AYUCh. 8.2 - Finding the Lean of the Leaning Tower of Pisa The...Ch. 8.2 - Prob. 52AYUCh. 8.2 - Constructing a Highway A highway whose primary...Ch. 8.2 - Calculating Distances at Sea The navigator of a...Ch. 8.2 - Designing an Awning An awning that covers a...Ch. 8.2 - Finding Distances A forest ranger is walking on a...Ch. 8.2 - Prob. 57AYUCh. 8.2 - Determining the Height of an Aircraft Two sensors...Ch. 8.2 - The Original Ferris Wheel George Washington Gale...Ch. 8.2 - Mollweides Formula For any triangle, Mollweides...Ch. 8.2 - Mollweides Formula Another form of Mollweides...Ch. 8.2 - For any triangle, derive the formula a=bcosC+ccosB...Ch. 8.2 - Law of Tangents For any triangle, derive the Law...Ch. 8.2 - Prob. 66AYUCh. 8.2 - Make up three problems involving oblique...Ch. 8.2 - Prob. 68AYUCh. 8.2 - What do you do first if you are asked to solve a...Ch. 8.2 - Solve Example 6 using right-triangle geometry....Ch. 8.2 - Prob. 71AYUCh. 8.2 - Find the exact distance between P 1 =( 1,7 ) and P...Ch. 8.2 - Prob. 73AYUCh. 8.2 - Prob. 74AYUCh. 8.2 - Write the equation in logarithmic form.
Ch. 8.2 - Prob. 76AYUCh. 8.2 - Prob. 77AYUCh. 8.2 - Find the equation of line perpendicular to y=23x+7...Ch. 8.2 - Prob. 79AYUCh. 8.2 - Prob. 80AYUCh. 8.3 - Write the formula for the distance d from P 1 =( x...Ch. 8.3 - If is an acute angle, solve the equation cos= 2 2...Ch. 8.3 - If three sides of a triangle are given, the Law of...Ch. 8.3 - If one side and two angles of a triangle are...Ch. 8.3 - If two sides and the included angle of a triangle...Ch. 8.3 - True or False Given only the three sides of a...Ch. 8.3 - True or False The Law of Cosines states that the...Ch. 8.3 - True or False A special case of the Law of Cosines...Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 9-16, solve each triangle.Ch. 8.3 - In Problems 17-32, solve each triangle. a=3 , b=4...Ch. 8.3 - In Problems 17-32, solve each triangle. a=2 , c=1...Ch. 8.3 - In Problems 1732, solve each triangle....Ch. 8.3 - In Problems 17-32, solve each triangle. a=6 , b=4...Ch. 8.3 - In Problems solve each triangle.
Ch. 8.3 - In Problems 17-32, solve each triangle. b=4 , c=1...Ch. 8.3 - In Problems solve each triangle.
Ch. 8.3 - In Problems 17-32, solve each triangle. a=3 , c=2...Ch. 8.3 - In Problems solve each triangle.
Ch. 8.3 - In Problems 17-32, solve each triangle. a=4 , b=5...Ch. 8.3 - In Problems 17-32, solve each triangle. a=2 , b=2...Ch. 8.3 - In Problems 17-32, solve each triangle. a=3 , b=3...Ch. 8.3 - In Problems 1732, solve each triangle....Ch. 8.3 - In Problems 17-32, solve each triangle. a=4 , b=3...Ch. 8.3 - In Problems 17-32, solve each triangle. a=10 , b=8...Ch. 8.3 - In Problems 17-32, solve each triangle. a=9 , b=7...Ch. 8.3 - In Problems 33-42, solve each triangle using...Ch. 8.3 - In Problems 33-42, solve each triangle using...Ch. 8.3 - In Problems 33-42, solve each triangle using...Ch. 8.3 - Prob. 36AYUCh. 8.3 - Prob. 37AYUCh. 8.3 - In Problems 33-42, solve each triangle using...Ch. 8.3 - Mixed Practice In Problems 3344, solve each...Ch. 8.3 - Prob. 40AYUCh. 8.3 - Prob. 41AYUCh. 8.3 - Prob. 42AYUCh. 8.3 - Prob. 43AYUCh. 8.3 - Prob. 44AYUCh. 8.3 - Distance to the Green A golfer hits an errant tee...Ch. 8.3 - Navigation An airplane flies due north from Ft....Ch. 8.3 - Avoiding a Tropical Storm A cruise ship maintains...Ch. 8.3 - Revising a Flight Plan In attempting to fly from...Ch. 8.3 - Major League Baseball Field A major league...Ch. 8.3 - Little League Baseball Field According to Little...Ch. 8.3 - Finding the Length of a Guy Wire The height of a...Ch. 8.3 - Finding the Length of a Guy Wire A radio tower 500...Ch. 8.3 - Identifying Remains The Purkait triangle, located...Ch. 8.3 - Prob. 54AYUCh. 8.3 - Soccer Angles A soccer goal is 8 yards wide....Ch. 8.3 - Wrigley Field, Home of the Chicago Cubs The...Ch. 8.3 - Prob. 58AYUCh. 8.3 - Building a Swing Set Clint is building a wooden...Ch. 8.3 - Rods and Pistons Rod OA rotates about the fixed...Ch. 8.3 - Prob. 61AYUCh. 8.3 - Prob. 62AYUCh. 8.3 - For any triangle, show that sin c 2 = ( sa )( sb )...Ch. 8.3 - Prob. 64AYUCh. 8.3 - Prob. 65AYUCh. 8.3 - Prob. 66AYUCh. 8.3 - Prob. 67AYUCh. 8.3 - Write down your strategy for solving an oblique...Ch. 8.3 - State the Law of Cosines in words.Ch. 8.3 - Graph: R( x )= 2x+1 x3Ch. 8.3 - Prob. 71AYUCh. 8.3 - Given tan= 2 6 5 and cos= 5 7 , find the exact...Ch. 8.3 - Prob. 73AYUCh. 8.3 - Prob. 74AYUCh. 8.3 - Prob. 75AYUCh. 8.3 - Prob. 76AYUCh. 8.3 - Prob. 77AYUCh. 8.3 - Convert 96 to radians.Ch. 8.3 - Prob. 79AYUCh. 8.4 - The area K of a triangle whose base is b and whose...Ch. 8.4 - Prob. 2AYUCh. 8.4 - If two sides a and b and the included angle C are...Ch. 8.4 - The area K of a triangle with sides a , b , and c...Ch. 8.4 - Find the area of the right triangle whose legs are...Ch. 8.4 - True or False The area of a triangle equals...Ch. 8.4 - Given two sides of a triangle, b and c , and the...Ch. 8.4 - Heron's Formula is used to find the area of...Ch. 8.4 - Prob. 9AYUCh. 8.4 - Prob. 10AYUCh. 8.4 - Prob. 11AYUCh. 8.4 - Prob. 12AYUCh. 8.4 - Prob. 13AYUCh. 8.4 - Prob. 14AYUCh. 8.4 - Prob. 15AYUCh. 8.4 - Prob. 16AYUCh. 8.4 - Prob. 17AYUCh. 8.4 - Prob. 18AYUCh. 8.4 - Prob. 19AYUCh. 8.4 - Prob. 20AYUCh. 8.4 - Prob. 21AYUCh. 8.4 - Prob. 22AYUCh. 8.4 - Prob. 23AYUCh. 8.4 - Prob. 24AYUCh. 8.4 - Prob. 25AYUCh. 8.4 - Prob. 26AYUCh. 8.4 - Prob. 27AYUCh. 8.4 - Prob. 28AYUCh. 8.4 - Prob. 29AYUCh. 8.4 - Prob. 30AYUCh. 8.4 - Prob. 31AYUCh. 8.4 - Prob. 32AYUCh. 8.4 - Prob. 33AYUCh. 8.4 - Prob. 34AYUCh. 8.4 - Prob. 35AYUCh. 8.4 - Prob. 36AYUCh. 8.4 - Prob. 37AYUCh. 8.4 - Prob. 38AYUCh. 8.4 - Cost of a Triangular Lot The dimensions of a...Ch. 8.4 - Prob. 40AYUCh. 8.4 - Prob. 41AYUCh. 8.4 - Prob. 42AYUCh. 8.4 - Dimensions of Home Plate The dimensions of home...Ch. 8.4 - Computing Areas See the figure. Find the area of...Ch. 8.4 - Geometry See the figure, which shows a circle of...Ch. 8.4 - Approximating the Area of a Lake To approximate...Ch. 8.4 - The Flatiron Building Completed in 1902 in New...Ch. 8.4 - Bermuda Triangle The Bermuda Triangle is roughly...Ch. 8.4 - Bretschneiders Formula There is a Heron-type...Ch. 8.4 - Perfect Triangles A perfect triangle is one having...Ch. 8.4 - Prob. 56AYUCh. 8.4 - Show that a formula for the altitude h from a...Ch. 8.4 - Prob. 58AYUCh. 8.4 - Inscribed Circle For Problems 55-58, the lines...Ch. 8.4 - Prob. 60AYUCh. 8.4 - Prob. 61AYUCh. 8.4 - Prob. 62AYUCh. 8.4 - Prob. 63AYUCh. 8.4 - Prob. 64AYUCh. 8.4 - Prob. 65AYUCh. 8.4 - Prob. 66AYUCh. 8.4 - Prob. 67AYUCh. 8.4 - Prob. 68AYUCh. 8.4 - Establish the identity: cscsin=coscotCh. 8.4 - Prob. 70AYUCh. 8.4 - Prob. 71AYUCh. 8.4 - Prob. 72AYUCh. 8.4 - Prob. 73AYUCh. 8.4 - Solve: x(x7)=18Ch. 8.4 - Prob. 75AYUCh. 8.5 - The amplitude A and period T of f( x )=5sin( 4x )...Ch. 8.5 - Prob. 2AYUCh. 8.5 - Prob. 3AYUCh. 8.5 - Prob. 4AYUCh. 8.5 - Prob. 5AYUCh. 8.5 - Prob. 6AYUCh. 8.5 - Prob. 7AYUCh. 8.5 - Prob. 8AYUCh. 8.5 - Prob. 9AYUCh. 8.5 - Prob. 10AYUCh. 8.5 - Rework Problem 7 under the same conditions, except...Ch. 8.5 - Prob. 12AYUCh. 8.5 - Rework Problem 9 under the same conditions, except...Ch. 8.5 - Rework Problem 10 under the same conditions,...Ch. 8.5 - Prob. 15AYUCh. 8.5 - Prob. 16AYUCh. 8.5 - Prob. 17AYUCh. 8.5 - Prob. 18AYUCh. 8.5 - In Problems 15-22, the displacement (in meters) of...Ch. 8.5 - Prob. 20AYUCh. 8.5 - Prob. 21AYUCh. 8.5 - Prob. 22AYUCh. 8.5 - Prob. 23AYUCh. 8.5 - Prob. 24AYUCh. 8.5 - Prob. 25AYUCh. 8.5 - Prob. 26AYUCh. 8.5 - Prob. 27AYUCh. 8.5 - Prob. 28AYUCh. 8.5 - Prob. 29AYUCh. 8.5 - Prob. 30AYUCh. 8.5 - Prob. 31AYUCh. 8.5 - Prob. 32AYUCh. 8.5 - Prob. 33AYUCh. 8.5 - Prob. 34AYUCh. 8.5 - Prob. 35AYUCh. 8.5 - Prob. 36AYUCh. 8.5 - Prob. 37AYUCh. 8.5 - Prob. 38AYUCh. 8.5 - Prob. 39AYUCh. 8.5 - Prob. 40AYUCh. 8.5 - Prob. 41AYUCh. 8.5 - Prob. 42AYUCh. 8.5 - Prob. 43AYUCh. 8.5 - Prob. 44AYUCh. 8.5 - Prob. 45AYUCh. 8.5 - Prob. 46AYUCh. 8.5 - Prob. 47AYUCh. 8.5 - Prob. 48AYUCh. 8.5 - Prob. 49AYUCh. 8.5 - In Problems 45-50. the distance d (in meters) of...Ch. 8.5 - Prob. 51AYUCh. 8.5 - Prob. 52AYUCh. 8.5 - Loudspeaker A loudspeaker diaphragm is oscillating...Ch. 8.5 - Colossus Added to Six Flags St. Louis in 1986, the...Ch. 8.5 - Tuning Fork The end of a tuning fork moves in...Ch. 8.5 - Tuning Fork The end of a tuning fork moves in...Ch. 8.5 - Charging a Capacitor See the illustration. If a...Ch. 8.5 - The Sawtooth Curve An oscilloscope often displays...Ch. 8.5 - A Clock Signal A clock signal is a non-sinusoidal...Ch. 8.5 - Non-Sinusoidal Waves Both the sawtooth and square...Ch. 8.5 - Graph the sound emitted by the * key on a...Ch. 8.5 - Challenge Problem Beats When two sinusoidal waves...Ch. 8.5 - Use a graphing utility to graph the function f( x...Ch. 8.5 - Use a graphing utility to graph y=xsinx,y= x 2...Ch. 8.5 - Use a graphing utility to graph y= 1 x sinx,y= 1 x...Ch. 8.5 - How would you explain to a friend what simple...Ch. 8.5 - Problems 65-68 are based on material learned...Ch. 8.5 - Problems 65-68 are based on material learned...Ch. 8.5 - Prob. 71AYUCh. 8.5 - Prob. 72AYUCh. 8.5 - Prob. 73AYUCh. 8.5 - Prob. 74AYUCh. 8.5 - Prob. 75AYUCh. 8.5 - Prob. 76AYUCh. 8.5 - Prob. 77AYUCh. 8.5 - Prob. 78AYUCh. 8 - In Problems 1 and 2, find the exact value of the...Ch. 8 - In Problems 1 and 2, find the exact value of the...Ch. 8 - In Problems 3-5, find the exact value of each...Ch. 8 - In Problems 3-5, find the exact value of each...Ch. 8 - In Problems 3-5, find the exact value of each...Ch. 8 - In Problems 6 and 7, solve each triangle.Ch. 8 - In Problems 6 and 7, solve each triangle.Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - Prob. 14RECh. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - Prob. 18RECh. 8 - In Problems 8-20, find the remaining angle(s) and...Ch. 8 - Prob. 20RECh. 8 - In Problems 21-25, find the area of each triangle....Ch. 8 - Prob. 22RECh. 8 - In Problems 21-25, find the area of each triangle....Ch. 8 - Prob. 24RECh. 8 - In Problems 21-25, find the area of each triangle....Ch. 8 - Area of a Segment Find the area of the segment of...Ch. 8 - Prob. 27RECh. 8 - Finding the Width of a River Find the distance...Ch. 8 - Finding the Distance to Shore The Willis Tower in...Ch. 8 - Prob. 30RECh. 8 - Finding the Grade of a Mountain Trail A straight...Ch. 8 - Finding the Height of a Helicopter Two observers...Ch. 8 - Prob. 33RECh. 8 - Approximating the Area of a Lake To approximate...Ch. 8 - Finding the Bearing of a Ship The Majesty leaves...Ch. 8 - Frictional Force A box sitting on a flat surface...Ch. 8 - Frictional Force (See Problem 37.) Once the box...Ch. 8 - Prob. 39RECh. 8 - Prob. 1CTCh. 8 - Prob. 2CTCh. 8 - In Problem, use the given information to determine...Ch. 8 - Prob. 4CTCh. 8 - In Problem 35, use the given information to...Ch. 8 - Prob. 6CTCh. 8 - Prob. 7CTCh. 8 - Prob. 8CTCh. 8 - Prob. 9CTCh. 8 - 10. Find the area of the triangle described in...Ch. 8 - Prob. 11CTCh. 8 - A hot- air balloon is flying at a height of 600...Ch. 8 - Find the area of the shaded region enclosed in a...Ch. 8 - 14. Find the area of the quadrilateral shown.
Ch. 8 - Prob. 15CTCh. 8 - Prob. 16CTCh. 8 - Prob. 17CTCh. 8 - Prob. 18CTCh. 8 - Prob. 1CRCh. 8 - Prob. 2CRCh. 8 - Prob. 3CRCh. 8 - Prob. 4CRCh. 8 - Prob. 5CRCh. 8 - Prob. 6CRCh. 8 - Prob. 7CRCh. 8 - Graph each of the following functions...Ch. 8 - Solve the triangle for which side a is 20, side c...Ch. 8 - Prob. 10CRCh. 8 - Prob. 11CRCh. 8 - Prob. 12CRCh. 8 - Prob. 13CRCh. 8 - Suppose that f(x)=4x+5 and g(x)=x2+5x24. Solve...
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- (10) (16 points) Let R>0. Consider the truncated sphere S given as x² + y² + (z = √15R)² = R², z ≥0. where F(x, y, z) = −yi + xj . (a) (8 points) Consider the vector field V (x, y, z) = (▼ × F)(x, y, z) Think of S as a hot-air balloon where the vector field V is the velocity vector field measuring the hot gasses escaping through the porous surface S. The flux of V across S gives the volume flow rate of the gasses through S. Calculate this flux. Hint: Parametrize the boundary OS. Then use Stokes' Theorem. (b) (8 points) Calculate the surface area of the balloon. To calculate the surface area, do the following: Translate the balloon surface S by the vector (-15)k. The translated surface, call it S+ is part of the sphere x² + y²+z² = R². Why do S and S+ have the same area? ⚫ Calculate the area of S+. What is the natural spherical parametrization of S+?arrow_forward(1) (8 points) Let c(t) = (et, et sint, et cost). Reparametrize c as a unit speed curve starting from the point (1,0,1).arrow_forward(9) (16 points) Let F(x, y, z) = (x² + y − 4)i + 3xyj + (2x2 +z²)k = - = (x²+y4,3xy, 2x2 + 2²). (a) (4 points) Calculate the divergence and curl of F. (b) (6 points) Find the flux of V x F across the surface S given by x² + y²+2² = 16, z ≥ 0. (c) (6 points) Find the flux of F across the boundary of the unit cube E = [0,1] × [0,1] x [0,1].arrow_forward
- (8) (12 points) (a) (8 points) Let C be the circle x² + y² = 4. Let F(x, y) = (2y + e²)i + (x + sin(y²))j. Evaluate the line integral JF. F.ds. Hint: First calculate V x F. (b) (4 points) Let S be the surface r² + y² + z² = 4, z ≤0. Calculate the flux integral √(V × F) F).dS. Justify your answer.arrow_forwardDetermine whether the Law of Sines or the Law of Cosines can be used to find another measure of the triangle. a = 13, b = 15, C = 68° Law of Sines Law of Cosines Then solve the triangle. (Round your answers to four decimal places.) C = 15.7449 A = 49.9288 B = 62.0712 × Need Help? Read It Watch Itarrow_forward(4) (10 points) Evaluate √(x² + y² + z²)¹⁄² exp[}(x² + y² + z²)²] dV where D is the region defined by 1< x² + y²+ z² ≤4 and √√3(x² + y²) ≤ z. Note: exp(x² + y²+ 2²)²] means el (x²+ y²+=²)²]¸arrow_forward
- (2) (12 points) Let f(x,y) = x²e¯. (a) (4 points) Calculate Vf. (b) (4 points) Given x directional derivative 0, find the line of vectors u = D₁f(x, y) = 0. (u1, 2) such that the - (c) (4 points) Let u= (1+3√3). Show that Duƒ(1, 0) = ¦|▼ƒ(1,0)| . What is the angle between Vf(1,0) and the vector u? Explain.arrow_forwardFind the missing values by solving the parallelogram shown in the figure. (The lengths of the diagonals are given by c and d. Round your answers to two decimal places.) a b 29 39 66.50 C 17.40 d 0 54.0 126° a Ꮎ b darrow_forward(5) (10 points) Let D be the parallelogram in the xy-plane with vertices (0, 0), (1, 1), (1, 1), (0, -2). Let f(x,y) = xy/2. Use the linear change of variables T(u, v)=(u,u2v) = (x, y) 1 to calculate the integral f(x,y) dA= 0 ↓ The domain of T is a rectangle R. What is R? |ǝ(x, y) du dv. |ð(u, v)|arrow_forward
- 2 Anot ined sove in peaper PV+96252 Q3// Find the volume of the region between the cylinder z = y2 and the xy- plane that is bounded by the planes x=1, x=2,y=-2,andy=2. vertical rect a Q4// Draw and Evaluate Soxy-2sin (ny2)dydx D Lake tarrow_forwardDetermine whether the Law of Sines or the Law of Cosines can be used to find another measure of the triangle. B 13 cm 97° Law of Sines Law of Cosines A 43° Then solve the triangle. (Round your answers to two decimal places.) b = x C = A = 40.00arrow_forwardFind the missing values by solving the parallelogram shown in the figure. (The lengths of the diagonals are given by c and d. Round your answers to two decimal places.) a 29 b 39 d Ꮎ 126° a Ꮎ b darrow_forward
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