Algebra and Trigonometry
1st Edition
ISBN: 9781938168376
Author: Jay Abramson
Publisher: OpenStax
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Textbook Question
Chapter 8.2, Problem 27SE
For the following exercises, sketch two periods of the graph for each of the following
27.
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d₁ ≥ ≥ dn ≥ 0 with di even.
di≤k(k − 1) + + min{k, di}
vi=k+1
T2.5: Let d1, d2,...,d be integers such that n - 1
Prove the equivalence of the Erdos-Gallai conditions:
for each k = 1, 2, ………, n and the Edge-Count Criterion: Σier di + Σjeл(n − 1 − d;) ≥ |I||J| for
all I, JC [n] with In J = 0.
T2.4: Let d₁
T2.3: Prove that there exists a connected graph with degrees d₁ ≥ d₂ >> dn if and only
if d1, d2,..., dn is graphic, d ≥ 1 and di≥2n2. That is, some graph having degree
sequence with these conditions is connected.
Hint - Do not attempt to directly prove this using Erdos-Gallai conditions. Instead work with a
realization and show that 2-switches can be used to make a connected graph with the same degree
sequence. Facts that can be useful: a component (i.e., connected) with n₁ vertices and at least
n₁ edges has a cycle. Note also that a 2-switch using edges from different components of a forest
will not necessarily reduce the number of components. Make sure that you justify that your proof
has a 2-switch that does decrease the number of components.
Chapter 8 Solutions
Algebra and Trigonometry
Ch. 8.1 - Determine the period of the function g(x)=(cosx3)...Ch. 8.1 - What is the amplitude of the sinusoidal function...Ch. 8.1 - Determine the direction and magnitude of the phase...Ch. 8.1 - Determine the direction and magnitude of the...Ch. 8.1 - Determine the midline, amplitude, period, and...Ch. 8.1 - Determine the formula for the sine function in...Ch. 8.1 - Write a formula for the function graphed in figure...Ch. 8.1 - Sketch a graph of g(x)=0.8cos(2x) . Determine the...Ch. 8.1 - Draw a graph of g(x)=2cos(3x+6) . Determine the...Ch. 8.1 - What is the amplitude of the function f(x)=7cos(x)...
Ch. 8.1 - A weight is attached to a spring that is then hung...Ch. 8.1 - Why are the sine and cosine functions called...Ch. 8.1 - How does the graph of y=sinx compare with the...Ch. 8.1 - For the equation Acos(Bx+C)+D, what constants...Ch. 8.1 - How does the range of a translated sine function...Ch. 8.1 - How can the unit circle be used to construct the...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph two full...Ch. 8.1 - For the following exercises, graph one full period...Ch. 8.1 - For the following exercises, graph one full period...Ch. 8.1 - For the following exercises, graph one full period...Ch. 8.1 - For the following exercises, graph one full period...Ch. 8.1 - For the following exercises, graph one full period...Ch. 8.1 - Determine the amplitude, midline, period, and an...Ch. 8.1 - Determine the amplitude, period, midline and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - Determine the amplitude, period, midline, and an...Ch. 8.1 - For the following exercises, let f(x)=sinx . 31....Ch. 8.1 - For the following exercises, let f(x)=sinx . 32....Ch. 8.1 - For the following exercises, let f(x)=sinx . 33....Ch. 8.1 - For the following exercises, let f(x)=sinx . 34....Ch. 8.1 - For the following exercises, let f(x)=sinx . 35....Ch. 8.1 - For the following exercises, let f(x)=sinx . 36....Ch. 8.1 - For the following exercises, let f(x)=sinx . 37....Ch. 8.1 - For the following exercises, let f(x)=cosx. 38. On...Ch. 8.1 - For the following exercises, let f(x)=cosx. 39. On...Ch. 8.1 - For the following exercises, let f(x)=cosx. 40. On...Ch. 8.1 - For the following exercises, let f(x)=cosx. 41. On...Ch. 8.1 - For the following exercises, let f(x)=cosx 42. On...Ch. 8.1 - Graph h(x)=x+sinx on [0,2) . Explain why the graph...Ch. 8.1 - Graph h(x)=x+sinx on [100,100] . Did the graph...Ch. 8.1 - Graph f(x)=x+sinx on [0,2) and verbalize how the...Ch. 8.1 - Graph f(x)=x+sinx on the window [10,10] and...Ch. 8.1 - Graph f(x)=sinxx on the window [5,5] and explain...Ch. 8.1 - A Ferris wheel is 25 meters in diameter and...Ch. 8.2 - Sketch a graph of f(x)=3tan(6x) .Ch. 8.2 - How would the graph in Example 2 look different if...Ch. 8.2 - Find a formula for the function in Figure 5.Ch. 8.2 - Graph one period of f(x)=2.5sec(0.4x) .Ch. 8.2 - Graph one period of f(x)=6sec(4x+2)8 .Ch. 8.2 - Graph one period of f(x)=0.5csc(2x) .Ch. 8.2 - Given the graph of f(x)=2cos(2x)+1 shown in Figure...Ch. 8.2 - Explain how the graph of the sine function can be...Ch. 8.2 - How can the graph of y=cosx be used to construct...Ch. 8.2 - Explain why the period of tan x is equal .Ch. 8.2 - Why are there no intercepts on the graph of...Ch. 8.2 - How does the period of y=cscx compare with the...Ch. 8.2 - Find the following exercises, match each...Ch. 8.2 - Find the following exercises, match each...Ch. 8.2 - Find the following exercises, match each...Ch. 8.2 - Find the following exercises, match each...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, find the period and...Ch. 8.2 - For the following exercises, rewrite each...Ch. 8.2 - For the following exercises, rewrite each...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, sketch two periods of...Ch. 8.2 - For the following exercises, find and graph two...Ch. 8.2 - For the following exercises, find and graph two...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, find an equation for...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - For the following exercises, use a graphing...Ch. 8.2 - The function f(x)=20tan(10x) marks the distance in...Ch. 8.2 - Standing on the shore of a lake, a fisherman...Ch. 8.2 - A laser rangefinder is locked on a comet...Ch. 8.2 - A video camera is focused on a rocket on a...Ch. 8.3 - Given cos(0.5)0.8776 , write a relation involving...Ch. 8.3 - Evaluate each of the following. a. sin1(1) b....Ch. 8.3 - Evaluate cos1(0.4) using a calculator.Ch. 8.3 - Solve the triangle in Figure 9 for the angle .Ch. 8.3 - Evaluate tan1(tan(8)) and tan1(tan( 119)) .Ch. 8.3 - Evaluate cos1(sin( 114)) .Ch. 8.3 - Evaluate cos(tan1(5 12)) .Ch. 8.3 - Evaluate cos(sin1(79)) .Ch. 8.3 - Find a simplified expression for sin(tan1(4x)) for...Ch. 8.3 - Why do the functions f(x)=sin1x and g(x)=cos1x...Ch. 8.3 - Since the function y=cosx and y=cos1x are inverse...Ch. 8.3 - Explain the meaning of 6=arcsin(0.5) .Ch. 8.3 - Most calculators do not have a key to evaluate...Ch. 8.3 - Why must the domain of the sine function, sin x,...Ch. 8.3 - Discuss why this statement is incorrect:...Ch. 8.3 - Determine whether the following statement is true...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, use a calculator to...Ch. 8.3 - For the following exercises, use a calculator to...Ch. 8.3 - For the following exercises, use a calculator to...Ch. 8.3 - For the following exercises, use a calculator to...Ch. 8.3 - For the following exercises, use a calculator to...Ch. 8.3 - For the following exercises, find the angle in...Ch. 8.3 - For the following exercises, find the angle in...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value,...Ch. 8.3 - For the following exercises, find the exact value...Ch. 8.3 - For the following exercises, find the exact value...Ch. 8.3 - For the following exercises, find the exact value...Ch. 8.3 - For the following exercises, find the exact value...Ch. 8.3 - For the following exercises, find the exact value...Ch. 8.3 - For the following exercises, evaluate the...Ch. 8.3 - For the following exercises, find the function if...Ch. 8.3 - For the following exercises, find the function if...Ch. 8.3 - For the following exercises, find the function if...Ch. 8.3 - For the following exercises, find the function if...Ch. 8.3 - For the following exercises, find the function if...Ch. 8.3 - Graph y=sin1x and state the domain and range of...Ch. 8.3 - Graph y=arccosx and state the domain and range of...Ch. 8.3 - Graph one cycle of y=tan1x and state the domain...Ch. 8.3 - For what value of x does sinx=sin1x ? Use a...Ch. 8.3 - For what value of x does cosx=cos1x ? Use a...Ch. 8.3 - Suppose a 13-foot ladder is leaning against a...Ch. 8.3 - Suppose you drive 0.6 miles on a road so that the...Ch. 8.3 - An isosceles triangle has two congruent sides of...Ch. 8.3 - Without using a calculator, approximate the value...Ch. 8.3 - A truss for the roof of a house is constructed...Ch. 8.3 - The line y=35x passes through the origin in the...Ch. 8.3 - The line y=37x passes through the origin in the...Ch. 8.3 - What percentage grade should a road have if the...Ch. 8.3 - A 20-foot ladder leans up against the side of a...Ch. 8.3 - Suppose a 15-foot ladder leans against the side of...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, graph two full...Ch. 8 - For the following exercises, use this scenario:...Ch. 8 - For the following exercises, use this scenario:...Ch. 8 - For the following exercises, use this scenario:...Ch. 8 - For the following exercises, use this scenario:...Ch. 8 - For the following exercises, use this scenario:...Ch. 8 - For the following exercises, suppose a weight is...Ch. 8 - For the following exercises, suppose a weight is...Ch. 8 - For the following exercises, suppose a weight is...Ch. 8 - For the following exercises, suppose a weight is...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - For the following exercises, find the exact value...Ch. 8 - Graph f(x)=cosxand f(x)=secx on the interval [0,2)...Ch. 8 - Graph f(x)=sinx and f(x)=cscx and explain any...Ch. 8 - Graph the function f(x)=x1x33!+x55!x77! on the...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, sketch the graph of...Ch. 8 - For the following exercises, determine the...Ch. 8 - For the following exercises, determine the...Ch. 8 - For the following exercises, determine the...Ch. 8 - For the following exercises, find the amplitude,...Ch. 8 - For the following exercises, find the amplitude,...Ch. 8 - The outside temperature over the course of a day...Ch. 8 - Water is pumped into a storage bin and empties...Ch. 8 - For the following exercises, find the period and...Ch. 8 - For the following exercises, find the period and...Ch. 8 - Write the equation for the graph in Figure 1 in...Ch. 8 - If tanx=3 , find tan(x) .Ch. 8 - If secx=4 , find sec(x) .Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, graph the functions...Ch. 8 - For the following exercises, let f(x)=35cos(6x) ....Ch. 8 - For the following exercises, let f(x)=35cos(6x) ....Ch. 8 - For the following exercises, let f(x)=35cos(6x) ....Ch. 8 - For the following exercises, find and graph one...Ch. 8 - For the following exercises, find and graph one...Ch. 8 - For the following exercises, graph the function....Ch. 8 - For the following exercises, graph the function....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, find the exact value....Ch. 8 - For the following exercises, suppose sint=xx+1 ....Ch. 8 - For the following exercises, suppose sint=xx+1 ....Ch. 8 - Given Figure 2, find the measure of angle to...Ch. 8 - For the following exercises, determine whether the...Ch. 8 - For the following exercises, determine whether the...Ch. 8 - The grade of a road is 7%. This means that for...
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- 2 18-17-16-15-14-13-12-11-10 -9 -8 -6 -5 -4-3-2-1 $ 6 8 9 10 -2+ The curve above is the graph of a sinusoidal function. It goes through the points (-10, -1) and (4, -1). Find a sinusoidal function that matches the given graph. If needed, you can enter π-3.1416... as 'pi' in your answer, otherwise use at least 3 decimal digits. f(x) = > Next Questionarrow_forwardketch a graph of the function f(x) = 3 cos (표) 6. x +1 5 4 3 3 80 9 2+ 1 -9 -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 -1 -2 -3+ -4 5 -6+ Clear All Draw: пи > Next Questionarrow_forwardDraw the following graph on the interval πT 5π < x < 2 2 y = 2 sin (2(x+7)) 6. 5. 4 3 3 2 1 +3 /2 -π/3 -π/6 π/6 π/3 π/2 2π/3 5π/6 π 7π/6 4π/3 3π/2 5π/311π/6 2π 13π/67π/3 5π Clear All Draw:arrow_forward
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- 2 d) Draw the following graph on the interval k 5π Next Questionarrow_forwardDraw the following graph on the interval 5л Next Questionarrow_forwardDraw the following graph on the interval πT 5π < x < x≤ 2 2 y = 2 cos(3(x-77)) +3 6+ 5 4- 3 2 1 /2 -π/3 -π/6 Clear All Draw: /6 π/3 π/2 2/3 5/6 x 7/6 4/3 3/2 5/311/6 2 13/67/3 5 Question Help: Video Submit Question Jump to Answerarrow_forward
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