Essential Calculus: Early Transcendentals
2nd Edition
ISBN: 9781133112280
Author: James Stewart
Publisher: Cengage Learning
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Chapter 2.7, Problem 41E
To determine
To find: The rate of change of the distance between runner and his friend standing at
200 m from the center of the track.
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43–46. Directions of change Consider the following functions f and
points P. Sketch the xy-plane showing P and the level curve through
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■ 45. f(x, y) = x² + xy + y² + 7; P(−3, 3)
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Chapter 2 Solutions
Essential Calculus: Early Transcendentals
Ch. 2.1 - (a) Find the slope of the tangent line to the...Ch. 2.1 - (a) Find the slope of the tangent line to the...Ch. 2.1 - Find an equation of the tangent line to the curve...Ch. 2.1 - Find an equation of the tangent line to the curve...Ch. 2.1 - Find an equation of the tangent line to the curve...Ch. 2.1 - Find an equation of the tangent line to the curve...Ch. 2.1 - (a) Find the slope of the tangent to the curve y =...Ch. 2.1 - (a) Find the slope of the tangent to the curve...Ch. 2.1 - The graph shows the position function of a car....Ch. 2.1 - Shown are graphs of the position functions of two...
Ch. 2.1 - If a ball is thrown into the air with a velocity...Ch. 2.1 - If an arrow is shot upward on the moon with a...Ch. 2.1 - The displacement (in meters) of a particle moving...Ch. 2.1 - The displacement (in meters) of a particle moving...Ch. 2.1 - Prob. 15ECh. 2.1 - Find an equation of the tangent line to the graph...Ch. 2.1 - If an equation of the tangent tine to the curve y...Ch. 2.1 - If the tangent line to y= f(x) at (4, 3) passes...Ch. 2.1 - Sketch the graph of a function f for which f(0) =...Ch. 2.1 - Sketch the graph of a function g for which g(0) =...Ch. 2.1 - If f(x) = 3x2 x3 , find f'(l) and use it to find...Ch. 2.1 - Prob. 22ECh. 2.1 - (a) If F(x) = 5x/(l + x2), find F'(2) and use it...Ch. 2.1 - Prob. 24ECh. 2.1 - Find f'(a). f(x) = 3x2 4x + 1Ch. 2.1 - Find f'(a). f(t) = 2t3 + tCh. 2.1 - Prob. 27ECh. 2.1 - Prob. 28ECh. 2.1 - Prob. 29ECh. 2.1 - Prob. 30ECh. 2.1 - Each limit represents the derivative of some...Ch. 2.1 - Each limit represents the derivative of some...Ch. 2.1 - Prob. 33ECh. 2.1 - Prob. 34ECh. 2.1 - Prob. 35ECh. 2.1 - 3136 Each limit represents the derivative of some...Ch. 2.1 - Prob. 37ECh. 2.1 - Prob. 38ECh. 2.1 - The number N of US cellular phone subscribers (in...Ch. 2.1 - The number N of locations of a popular coffeehouse...Ch. 2.1 - Prob. 41ECh. 2.1 - If a cylindrical tank holds 100,000 gallons of...Ch. 2.1 - The cost of producing x ounces of gold from a new...Ch. 2.1 - The number of bacteria after r hours in a...Ch. 2.1 - Prob. 45ECh. 2.1 - Prob. 46ECh. 2.1 - Prob. 47ECh. 2.1 - The graph shows the influence of the temperature T...Ch. 2.1 - Prob. 49ECh. 2.1 - Prob. 50ECh. 2.2 - Use the given graph to estimate the value of each...Ch. 2.2 - Use the given graph to estimate the value of each...Ch. 2.2 - Match the graph of each function in (a)(d) with...Ch. 2.2 - Trace or copy the graph of the given function .f....Ch. 2.2 - Trace or copy the graph of the given function .f....Ch. 2.2 - Prob. 6ECh. 2.2 - Prob. 7ECh. 2.2 - Prob. 8ECh. 2.2 - Prob. 9ECh. 2.2 - Trace or copy the graph of the given function .f....Ch. 2.2 - Trace or copy the graph of the given function .f....Ch. 2.2 - Shown is the graph of the population function P(t)...Ch. 2.2 - Prob. 13ECh. 2.2 - Prob. 14ECh. 2.2 - Prob. 15ECh. 2.2 - Prob. 16ECh. 2.2 - Prob. 17ECh. 2.2 - Prob. 18ECh. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Find the derivative of the function using the...Ch. 2.2 - Prob. 25ECh. 2.2 - Prob. 26ECh. 2.2 - Prob. 27ECh. 2.2 - Prob. 28ECh. 2.2 - Prob. 29ECh. 2.2 - Prob. 30ECh. 2.2 - The unemployment rate U(t) varies with time. The...Ch. 2.2 - Prob. 32ECh. 2.2 - Prob. 33ECh. 2.2 - Prob. 34ECh. 2.2 - Prob. 35ECh. 2.2 - The graph of f is given. State, with reasons, the...Ch. 2.2 - Prob. 37ECh. 2.2 - Prob. 38ECh. 2.2 - Prob. 39ECh. 2.2 - Prob. 40ECh. 2.2 - Prob. 41ECh. 2.2 - Use the definition of a derivative to find f'(x)...Ch. 2.2 - Prob. 42ECh. 2.2 - If f(x) = 2x2 x3, find f'(x), f"(x), f'"(x), and...Ch. 2.2 - Prob. 45ECh. 2.2 - Prob. 46ECh. 2.2 - Prob. 47ECh. 2.2 - Where is the greatest integer function f(x) = [[ x...Ch. 2.2 - Prob. 49ECh. 2.2 - Prob. 50ECh. 2.2 - Prob. 51ECh. 2.3 - Differentiate the function. f(x) = 240Ch. 2.3 - Differentiate the function. f(x)=2Ch. 2.3 - Differentiate the function. f(t)=223tCh. 2.3 - Differentiate the function. F(x)=34x8Ch. 2.3 - Prob. 5ECh. 2.3 - Differentiate the function. f(t) = 1.4t5 2.5t2+...Ch. 2.3 - Prob. 9ECh. 2.3 - Prob. 10ECh. 2.3 - Prob. 11ECh. 2.3 - Differentiate the function. B(y) = cy6Ch. 2.3 - Differentiate the function. A(s)=12s5Ch. 2.3 - Prob. 14ECh. 2.3 - Prob. 15ECh. 2.3 - Differentiate the function. y=x(x1)Ch. 2.3 - Prob. 17ECh. 2.3 - Prob. 20ECh. 2.3 - Prob. 21ECh. 2.3 - Prob. 18ECh. 2.3 - Differentiate the function. z=Ay10+BcosyCh. 2.3 - Prob. 22ECh. 2.3 - Differentiate the function. y=x2+4x+3xCh. 2.3 - Differentiate the function. y=sin2+cCh. 2.3 - Prob. 25ECh. 2.3 - Prob. 26ECh. 2.3 - Prob. 7ECh. 2.3 - Prob. 8ECh. 2.3 - Prob. 27ECh. 2.3 - Prob. 28ECh. 2.3 - Prob. 29ECh. 2.3 - Prob. 30ECh. 2.3 - Prob. 31ECh. 2.3 - Prob. 34ECh. 2.3 - Prob. 33ECh. 2.3 - Prob. 32ECh. 2.3 - Prob. 43ECh. 2.3 - Prob. 44ECh. 2.3 - Prob. 55ECh. 2.3 - Find the points on the curve y = 2x3 + 3x2 12x +...Ch. 2.3 - Prob. 37ECh. 2.3 - Show that the curve y = 6x3 + 5x 3 has no tangent...Ch. 2.3 - Find an equation of the tangent line to the curve...Ch. 2.3 - Prob. 41ECh. 2.3 - Prob. 42ECh. 2.3 - Prob. 61ECh. 2.3 - Prob. 62ECh. 2.3 - Prob. 57ECh. 2.3 - Prob. 36ECh. 2.3 - Prob. 59ECh. 2.3 - Prob. 65ECh. 2.3 - Prob. 64ECh. 2.3 - Prob. 48ECh. 2.3 - Prob. 58ECh. 2.3 - Prob. 60ECh. 2.3 - Prob. 67ECh. 2.3 - Prob. 66ECh. 2.3 - For what values of a and b is the line 2x + y = b...Ch. 2.3 - Prob. 68ECh. 2.3 - Prob. 69ECh. 2.3 - Draw a diagram showing two perpendicular lines...Ch. 2.3 - Prob. 71ECh. 2.3 - Prob. 72ECh. 2.3 - Prob. 35ECh. 2.3 - Prob. 45ECh. 2.3 - Prob. 46ECh. 2.3 - If a ball is thrown vertically upward with a...Ch. 2.3 - If a rock is thrown vertically upward from the...Ch. 2.3 - The position function of a particle is given by s...Ch. 2.3 - Prob. 53ECh. 2.3 - Prob. 54ECh. 2.3 - Prob. 56ECh. 2.3 - Prob. 51ECh. 2.3 - The cost function for production of a commodity is...Ch. 2.4 - Find the derivative of f(x) = (1 + 2x2)(x x2) in...Ch. 2.4 - Find the derivative o f the function...Ch. 2.4 - Differentiate. g(t)=t3costCh. 2.4 - Differentiate. f(x)=xsinxCh. 2.4 - Differentiate. g(x)=1+2x34xCh. 2.4 - Differentiate. G(x)=x222x+1Ch. 2.4 - Differentiate. h()=csccotCh. 2.4 - Differentiate. J(v) = (v3 2v)(v4 + v2)Ch. 2.4 - Prob. 5ECh. 2.4 - Differentiate. y=sincosCh. 2.4 - Differentiate. y=x31x2Ch. 2.4 - Differentiate. y=x+1x3+x2Ch. 2.4 - Differentiate. y=v32vvvCh. 2.4 - Differentiate. g(t)=ttt1/3Ch. 2.4 - Differentiate. f(t)=2t2+tCh. 2.4 - Differentiate. y=x1x+1Ch. 2.4 - Differentiate. f()=sec1+secCh. 2.4 - Differentiate. y=1secxtanxCh. 2.4 - Prob. 24ECh. 2.4 - Differentiate. f(x)=xx+cxCh. 2.4 - Find an equation of the tangent line to the given...Ch. 2.4 - Find an equation of the tangent line to the given...Ch. 2.4 - Prob. 31ECh. 2.4 - Prob. 32ECh. 2.4 - Prob. 33ECh. 2.4 - Prob. 41ECh. 2.4 - Prob. 42ECh. 2.4 - If f and g are the functions whose graphs are...Ch. 2.4 - Let P(x) = F(x)G(x) and Q(x) = F(x)/G(x), where F...Ch. 2.4 - Prob. 45ECh. 2.4 - Prob. 46ECh. 2.4 - Prob. 47ECh. 2.4 - Prob. 48ECh. 2.4 - Prob. 49ECh. 2.4 - Prob. 50ECh. 2.4 - Prob. 53ECh. 2.4 - Prob. 54ECh. 2.4 - Prob. 55ECh. 2.4 - Prob. 56ECh. 2.4 - Prob. 57ECh. 2.4 - Prob. 26ECh. 2.4 - Prob. 7ECh. 2.4 - Differentiate. y = 2 sec x csc xCh. 2.4 - Prob. 19ECh. 2.4 - Differentiate. y=cosx1sinxCh. 2.4 - Prob. 23ECh. 2.4 - Prob. 37ECh. 2.4 - Prob. 38ECh. 2.4 - Prob. 39ECh. 2.4 - Find an equation of the tangent line to the curve...Ch. 2.4 - Prob. 30ECh. 2.4 - Prob. 35ECh. 2.4 - Prob. 34ECh. 2.4 - Prob. 40ECh. 2.4 - A mass on a spring vibrates horizontally on a...Ch. 2.4 - Prob. 52ECh. 2.4 - Prob. 36ECh. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Write the composite function in the form f(g(x))....Ch. 2.5 - Find the derivative of the function. F(x) = (x4 +...Ch. 2.5 - Find the derivative of the function. F(x) = (4x ...Ch. 2.5 - Find the derivative of the function. F(x)=12xCh. 2.5 - Find the derivative of the function....Ch. 2.5 - Prob. 11ECh. 2.5 - Find the derivative of the function. f(t)=1+tant3Ch. 2.5 - Prob. 13ECh. 2.5 - Prob. 14ECh. 2.5 - Prob. 15ECh. 2.5 - Prob. 16ECh. 2.5 - Find the derivative of the function. f(x) = (2x ...Ch. 2.5 - Find the derivative of the function. g(x) = (x2 +...Ch. 2.5 - Prob. 19ECh. 2.5 - Prob. 20ECh. 2.5 - Find the derivative of the function. y=(x2+1x21)3Ch. 2.5 - Find the derivative of the function. f(s)=s2+1s2+4Ch. 2.5 - Find the derivative of the function. y=sin(xcosx)Ch. 2.5 - Prob. 24ECh. 2.5 - Prob. 25ECh. 2.5 - Prob. 26ECh. 2.5 - Prob. 27ECh. 2.5 - Prob. 28ECh. 2.5 - Prob. 29ECh. 2.5 - Prob. 30ECh. 2.5 - Prob. 31ECh. 2.5 - Prob. 32ECh. 2.5 - Prob. 33ECh. 2.5 - Prob. 34ECh. 2.5 - Find the derivative of the function. y = cot2(sin...Ch. 2.5 - Prob. 36ECh. 2.5 - 742 Find the derivative of the function. 37....Ch. 2.5 - Find the derivative of the function. y=x+x+xCh. 2.5 - Prob. 39ECh. 2.5 - 742 Find the derivative of the function. 40....Ch. 2.5 - Prob. 41ECh. 2.5 - Prob. 42ECh. 2.5 - Prob. 43ECh. 2.5 - Prob. 44ECh. 2.5 - Prob. 45ECh. 2.5 - Prob. 46ECh. 2.5 - Prob. 48ECh. 2.5 - Prob. 47ECh. 2.5 - Prob. 49ECh. 2.5 - Prob. 50ECh. 2.5 - Prob. 51ECh. 2.5 - Prob. 52ECh. 2.5 - Prob. 53ECh. 2.5 - Prob. 54ECh. 2.5 - A table of values for f, g, f, and g is given. (a)...Ch. 2.5 - Prob. 56ECh. 2.5 - Prob. 57ECh. 2.5 - Prob. 58ECh. 2.5 - Prob. 59ECh. 2.5 - Prob. 60ECh. 2.5 - Prob. 61ECh. 2.5 - Prob. 62ECh. 2.5 - Prob. 75ECh. 2.5 - Prob. 76ECh. 2.5 - Prob. 63ECh. 2.5 - Prob. 64ECh. 2.5 - Prob. 65ECh. 2.5 - Prob. 66ECh. 2.5 - Prob. 67ECh. 2.5 - Prob. 68ECh. 2.5 - Prob. 69ECh. 2.5 - Air is being pumped into a spherical weather...Ch. 2.5 - Prob. 72ECh. 2.5 - Prob. 71ECh. 2.5 - Prob. 74ECh. 2.5 - Use the Chain Rule to show that if is measured in...Ch. 2.5 - Prob. 78ECh. 2.5 - Prob. 77ECh. 2.6 - (a) Find y by implicit differentiation. (b) Solve...Ch. 2.6 - (a) Find y by implicit differentiation. (b) Solve...Ch. 2.6 - Find dy/dx by implicit differentiation. x3 + y3 =...Ch. 2.6 - Find dy/dx by implicit differentiation. 2x3 + x2y ...Ch. 2.6 - Prob. 5ECh. 2.6 - Find dy/dx by implicit differentiation. y5 + x2y3...Ch. 2.6 - Find dy/dx by implicit differentiation. 11. y cos...Ch. 2.6 - Find dy/dx by implicit differentiation. 12....Ch. 2.6 - Prob. 9ECh. 2.6 - Prob. 10ECh. 2.6 - Prob. 11ECh. 2.6 - Find dy/dx by implicit differentiation. x+y=1+x2y2Ch. 2.6 - 3-16 Find dy/dx by implicit differentiation. 13....Ch. 2.6 - Prob. 14ECh. 2.6 - Prob. 15ECh. 2.6 - Find dy/dx by implicit differentiation. 20....Ch. 2.6 - Prob. 17ECh. 2.6 - If g(x) + x sin g(x) = x2, find g(0).Ch. 2.6 - Use implicit differentiation to find an equation...Ch. 2.6 - Prob. 19ECh. 2.6 - Use implicit differentiation to find an equation...Ch. 2.6 - Prob. 22ECh. 2.6 - Use implicit differentiation to find an equation...Ch. 2.6 - Prob. 24ECh. 2.6 - Prob. 29ECh. 2.6 - Prob. 30ECh. 2.6 - Prob. 25ECh. 2.6 - Prob. 26ECh. 2.6 - Prob. 27ECh. 2.6 - Prob. 28ECh. 2.6 - Find the points on the lemniscate in Exercise 23...Ch. 2.6 - Show by implicit differentiation that the tangent...Ch. 2.6 - Show that the sum of the x-and y-intercepts of any...Ch. 2.6 - Prob. 41ECh. 2.6 - Prob. 35ECh. 2.6 - Prob. 36ECh. 2.6 - Prob. 37ECh. 2.6 - Prob. 38ECh. 2.6 - Prob. 47ECh. 2.6 - Prob. 48ECh. 2.6 - Prob. 39ECh. 2.6 - Prob. 43ECh. 2.6 - Prob. 44ECh. 2.6 - Prob. 45ECh. 2.6 - Prob. 46ECh. 2.6 - Prob. 49ECh. 2.6 - Prob. 50ECh. 2.7 - Prob. 1ECh. 2.7 - (a) If A is the area of a circle with radius r and...Ch. 2.7 - Prob. 3ECh. 2.7 - The length of a rectangle is increasing at a rate...Ch. 2.7 - A cylindrical tank with radius 5 m is being filled...Ch. 2.7 - The radius of a sphere is increasing at a rate of...Ch. 2.7 - Prob. 7ECh. 2.7 - Prob. 8ECh. 2.7 - Prob. 9ECh. 2.7 - A particle is moving along a hyperbola xy = 8. As...Ch. 2.7 - Prob. 13ECh. 2.7 - (a) What quantities are given in the problem? (b)...Ch. 2.7 - (a) What quantities are given in the problem? (b)...Ch. 2.7 - (a) What quantities are given in the problem? (b)...Ch. 2.7 - Two cars start moving from the same point. One...Ch. 2.7 - A spotlight on the ground shines on a wall 12m...Ch. 2.7 - Prob. 17ECh. 2.7 - Prob. 18ECh. 2.7 - Prob. 19ECh. 2.7 - Prob. 20ECh. 2.7 - Prob. 21ECh. 2.7 - Prob. 22ECh. 2.7 - Prob. 24ECh. 2.7 - A trough is 10 ft long and its ends have the shape...Ch. 2.7 - Prob. 26ECh. 2.7 - Prob. 27ECh. 2.7 - Prob. 28ECh. 2.7 - Prob. 29ECh. 2.7 - Prob. 30ECh. 2.7 - Prob. 31ECh. 2.7 - Prob. 32ECh. 2.7 - Prob. 33ECh. 2.7 - Prob. 34ECh. 2.7 - Prob. 35ECh. 2.7 - Prob. 36ECh. 2.7 - Prob. 23ECh. 2.7 - Prob. 37ECh. 2.7 - A lighthouse is located on a small island 3 km...Ch. 2.7 - Prob. 39ECh. 2.7 - Prob. 40ECh. 2.7 - Prob. 41ECh. 2.7 - Prob. 42ECh. 2.8 - Find the linearization L(x) of the function at a....Ch. 2.8 - Prob. 2ECh. 2.8 - Prob. 3ECh. 2.8 - Prob. 4ECh. 2.8 - Prob. 5ECh. 2.8 - Prob. 6ECh. 2.8 - Prob. 7ECh. 2.8 - Prob. 10ECh. 2.8 - 7-10 Verify the given linear approximation at a =...Ch. 2.8 - Prob. 8ECh. 2.8 - Prob. 18ECh. 2.8 - Prob. 17ECh. 2.8 - Let y = tan x. (a) Find the differential dy. (b)...Ch. 2.8 - Let y = tan x. (a) Find the differential dy. (b)...Ch. 2.8 - Prob. 11ECh. 2.8 - Prob. 14ECh. 2.8 - Use a linear approximation (or differentials) to...Ch. 2.8 - Prob. 13ECh. 2.8 - Prob. 15ECh. 2.8 - Prob. 16ECh. 2.8 - Prob. 21ECh. 2.8 - Prob. 22ECh. 2.8 - The circumference of a sphere was measured to be...Ch. 2.8 - Prob. 24ECh. 2.8 - One side of a right triangle is known to be 20 cm...Ch. 2.8 - Prob. 25ECh. 2.8 - When blood flows along a blood vessel, the flux F...Ch. 2.8 - Prob. 28ECh. 2.8 - Prob. 29ECh. 2.8 - Suppose that we dont have a formula for g(x) but...Ch. 2 - Prob. 1RCCCh. 2 - Prob. 2RCCCh. 2 - Prob. 4RCCCh. 2 - Prob. 3RCCCh. 2 - Prob. 5RCCCh. 2 - Prob. 6RCCCh. 2 - Prob. 7RCCCh. 2 - Prob. 1RQCh. 2 - Prob. 8RQCh. 2 - Determine whether the statement is true or false....Ch. 2 - Prob. 2RECh. 2 - Prob. 3RECh. 2 - Prob. 4RECh. 2 - Prob. 5RECh. 2 - Prob. 6RECh. 2 - Prob. 63RECh. 2 - Prob. 7RECh. 2 - Prob. 9RECh. 2 - Prob. 8RECh. 2 - Prob. 8RCCCh. 2 - Prob. 9RCCCh. 2 - Prob. 10RCCCh. 2 - Prob. 11RCCCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 12RQCh. 2 - Prob. 7RQCh. 2 - Prob. 11RQCh. 2 - Prob. 9RQCh. 2 - Prob. 13RECh. 2 - Prob. 14RECh. 2 - Prob. 15RECh. 2 - Prob. 16RECh. 2 - Prob. 17RECh. 2 - Prob. 19RECh. 2 - Prob. 33RECh. 2 - Prob. 1RECh. 2 - Prob. 10RECh. 2 - Prob. 11RECh. 2 - Prob. 12RECh. 2 - Prob. 18RECh. 2 - Prob. 20RECh. 2 - Prob. 21RECh. 2 - Prob. 22RECh. 2 - Prob. 23RECh. 2 - Prob. 25RECh. 2 - Prob. 26RECh. 2 - Prob. 36RECh. 2 - Prob. 37RECh. 2 - Prob. 38RECh. 2 - Prob. 24RECh. 2 - Prob. 27RECh. 2 - Prob. 28RECh. 2 - Prob. 29RECh. 2 - Prob. 30RECh. 2 - Prob. 31RECh. 2 - Prob. 39RECh. 2 - Prob. 35RECh. 2 - Prob. 32RECh. 2 - Prob. 34RECh. 2 - Prob. 40RECh. 2 - Prob. 41RECh. 2 - Prob. 42RECh. 2 - Prob. 43RECh. 2 - Prob. 44RECh. 2 - Prob. 45RECh. 2 - Prob. 46RECh. 2 - Prob. 47RECh. 2 - Prob. 48RECh. 2 - Prob. 49RECh. 2 - Prob. 50RECh. 2 - Prob. 51RECh. 2 - 70. If f and g are the functions whose graphs are...Ch. 2 - Prob. 53RECh. 2 - Prob. 54RECh. 2 - Prob. 55RECh. 2 - Prob. 57RECh. 2 - Prob. 56RECh. 2 - Prob. 58RECh. 2 - Prob. 59RECh. 2 - Prob. 60RECh. 2 - Prob. 61RECh. 2 - Prob. 62RECh. 2 - Prob. 65RECh. 2 - Prob. 64RECh. 2 - Prob. 66RECh. 2 - Prob. 67RECh. 2 - Prob. 68RECh. 2 - Prob. 69RECh. 2 - Prob. 70RECh. 2 - Prob. 71RECh. 2 - Prob. 72RECh. 2 - Prob. 73RECh. 2 - Prob. 74RECh. 2 - Prob. 75RECh. 2 - Prob. 76RECh. 2 - Prob. 77RECh. 2 - Prob. 78RECh. 2 - Evaluate limx01+tanx1+sinxx3.Ch. 2 - Prob. 80RECh. 2 - Prob. 81RECh. 2 - Prob. 82RE
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