Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Chapter 6.3, Problem 1E

CONCEPT PREVIEW Refer to Exercises 1–6 in the previous section, and use those results to solve each equation over the interval [0, 2π).

cos 2 x = 1 2

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t 56 65 33
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Chapter 6 Solutions

Trigonometry (11th Edition)

Ch. 6.1 - CONCEPT PREVIEW Fill in the blank(s) to...Ch. 6.1 - CONCEPT PREVIEW Fill in the blank(s) to...Ch. 6.1 - 3. y = cos–1 x means that x = ________ for 0 ≤ y...Ch. 6.1 - 4. The point lies on the graph of y = tan x....Ch. 6.1 - 5. If a function f has an inverse and f(π) = –1,...Ch. 6.1 - CONCEPT PREVIEW Fill in the blank(s) to...Ch. 6.1 - CONCEPT PREVIEW Write a short answer for each of...Ch. 6.1 - Consider the inverse cosine function y = cos1 x,...Ch. 6.1 - 9. Consider the inverse tangent function y =...Ch. 6.1 - 10. Give the domain and range of each inverse...
Ch. 6.1 - 11. Concept Check Why are different intervals...Ch. 6.1 - Concept Check For positive values of a, cot1 a is...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Find the exact value of each real number y if it...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of θ if it exists. Do...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of θ if it exists. Do...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Give the degree measure of if it exists. Do not...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each value in...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Use a calculator to approximate each real number...Ch. 6.1 - Prob. 69ECh. 6.1 - Prob. 70ECh. 6.1 - Prob. 71ECh. 6.1 - Prob. 72ECh. 6.1 - Prob. 73ECh. 6.1 - Prob. 74ECh. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Prob. 85ECh. 6.1 - Prob. 86ECh. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Evaluate each expression without using a...Ch. 6.1 - Use a calculator to find each value. Give answers...Ch. 6.1 - Prob. 92ECh. 6.1 - Prob. 93ECh. 6.1 - Use a calculator to find each value. Give...Ch. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Prob. 100ECh. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Prob. 102ECh. 6.1 - Write each trigonometric expression as an...Ch. 6.1 - Prob. 104ECh. 6.1 - 105. Angle of Elevation of a Shot Put Refer to...Ch. 6.1 - Prob. 106ECh. 6.1 - Observation of a Painting A painting 1 m high and...Ch. 6.1 - Landscaping Formula A shrub is planted in a...Ch. 6.1 - Communications Satellite Coverage The figure shows...Ch. 6.1 - Prob. 110ECh. 6.1 - Prob. 111ECh. 6.1 - Prob. 112ECh. 6.1 - Prob. 113ECh. 6.1 - Prob. 114ECh. 6.2 - CONCEPT PREVIEW Use the unit circle shown here...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here to...Ch. 6.2 - CONCEPT PREVIEW Use the unit circle shown here...Ch. 6.2 - Concept Check Suppose that in solving an equation...Ch. 6.2 - 14. Concept Check Lindsay solved the equation...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - 2 sin2 x = 3 sin x + 1Ch. 6.2 - Solve each equation for exact solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Prob. 34ECh. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Prob. 42ECh. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Prob. 44ECh. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation for solutions over the...Ch. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 48ECh. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 50ECh. 6.2 - Solve each equation (x in radians and θ in...Ch. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 54ECh. 6.2 - Solve each equation (x in radians and θ in...Ch. 6.2 - Solve each equation (x in radians and θ in...Ch. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 58ECh. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 60ECh. 6.2 - Solve each equation (x in radians and in degrees)...Ch. 6.2 - Prob. 62ECh. 6.2 - Prob. 63ECh. 6.2 - The following equations cannot be solved by...Ch. 6.2 - Pressure on the Eardrum See Example 6. No musical...Ch. 6.2 - Accident Reconstruction To reconstruct accidents...Ch. 6.2 - Prob. 67ECh. 6.2 - Prob. 68ECh. 6.3 - CONCEPT PREVIEW Refer to Exercises 1–6 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 16 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 1–6 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 16 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 16 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 1-6 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 712 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 712 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 712 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 712 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 7–12 in the...Ch. 6.3 - CONCEPT PREVIEW Refer to Exercises 712 in the...Ch. 6.3 - Suppose solving a trigonometric equation for...Ch. 6.3 - 14. Suppose solving a trigonometric equation for...Ch. 6.3 - 15. Suppose solving a trigonometric equation for...Ch. 6.3 - Prob. 16ECh. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Prob. 29ECh. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation in x for exact solutions over...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and θ in...Ch. 6.3 - Prob. 40ECh. 6.3 - Solve each equation (x in radians and θ in...Ch. 6.3 - Prob. 42ECh. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Prob. 44ECh. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and in degrees)...Ch. 6.3 - Solve each equation (x in radians and θ in...Ch. 6.3 - Solve each equation (x in radians and θ in...Ch. 6.3 - Solve each equation for solutions over the...Ch. 6.3 - Solve each equation for solutions over the...Ch. 6.3 - Solve each equation for solutions over the...Ch. 6.3 - Solve each equation for solutions over the...Ch. 6.3 - The following equations cannot be solved by...Ch. 6.3 - The following equations cannot be solved by...Ch. 6.3 - 57. Pressure of a Plucked String If a string with...Ch. 6.3 - Hearing Beats in Music Musicians sometimes tune...Ch. 6.3 - 59. Hearing Difference Tones When a musical...Ch. 6.3 - Daylight Hours in New Orleans The seasonal...Ch. 6.3 - Average Monthly Temperature in Vancouver The...Ch. 6.3 - Average Monthly Temperature in Phoenix The...Ch. 6.3 - (Modeling) Alternating Electric Current The study...Ch. 6.3 - Prob. 64ECh. 6.3 - (Modeling) Alternating Electric Current The...Ch. 6.3 - Prob. 66ECh. 6.3 - Graph y = cos1 x, and indicate the coordinates of...Ch. 6.3 - Prob. 2QCh. 6.3 - Prob. 3QCh. 6.3 - Evaluate each expression without using a...Ch. 6.3 - Prob. 5QCh. 6.3 - Prob. 6QCh. 6.3 - Prob. 7QCh. 6.3 - Solve each equation for solutions over the...Ch. 6.3 - Prob. 9QCh. 6.3 - Solve each equation for solutions over the...Ch. 6.4 - Which one of the following equations has solution...Ch. 6.4 - 2. Which one of the following equations has...Ch. 6.4 - Prob. 3ECh. 6.4 - Which one of the following equations has solution...Ch. 6.4 - 5. Which one of the following equations has...Ch. 6.4 - 4. Which one of the following equations has...Ch. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 8ECh. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 10ECh. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 12ECh. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 14ECh. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 19ECh. 6.4 - Prob. 20ECh. 6.4 - Solve each equation for x, where x is restricted...Ch. 6.4 - Prob. 22ECh. 6.4 - Prob. 23ECh. 6.4 - Prob. 24ECh. 6.4 - Refer to Exercise 15. A student solving this...Ch. 6.4 - Prob. 26ECh. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Prob. 30ECh. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Prob. 40ECh. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Solve each equation for exact solutions. See...Ch. 6.4 - Prob. 44ECh. 6.4 - Prob. 45ECh. 6.4 - Prob. 46ECh. 6.4 - Prob. 47ECh. 6.4 - Prob. 48ECh. 6.4 - Prob. 49ECh. 6.4 - Prob. 50ECh. 6.4 - 51. Depth of Field When a large-view camera is...Ch. 6.4 - Prob. 52ECh. 6.4 - Prob. 53ECh. 6.4 - 54. Viewing Angle of an Observer While visiting a...Ch. 6.4 - Prob. 55ECh. 6 - Prob. 1RECh. 6 - The ranges of the inverse tangent and inverse...Ch. 6 - Concept Check Determine whether each statement...Ch. 6 - Concept Check Determine whether each statement...Ch. 6 - Prob. 5RECh. 6 - Find the exact value of each real number y. Do not...Ch. 6 - Prob. 7RECh. 6 - Prob. 8RECh. 6 - Prob. 9RECh. 6 - Prob. 10RECh. 6 - Find the exact value of each real number y. Do not...Ch. 6 - Prob. 12RECh. 6 - Prob. 13RECh. 6 - Prob. 14RECh. 6 - Prob. 15RECh. 6 - Give the degree measure of . Do not use a...Ch. 6 - Prob. 17RECh. 6 - Prob. 18RECh. 6 - Prob. 19RECh. 6 - Prob. 20RECh. 6 - Prob. 21RECh. 6 - Prob. 22RECh. 6 - Evaluate each expression without using a...Ch. 6 - Prob. 24RECh. 6 - Prob. 25RECh. 6 - Prob. 26RECh. 6 - Prob. 27RECh. 6 - Prob. 28RECh. 6 - Evaluate each expression without using a...Ch. 6 - Evaluate each expression without using a...Ch. 6 - Prob. 31RECh. 6 - Prob. 32RECh. 6 - Evaluate each expression without using a...Ch. 6 - Prob. 34RECh. 6 - Prob. 35RECh. 6 - Prob. 36RECh. 6 - Prob. 37RECh. 6 - Prob. 38RECh. 6 - Prob. 39RECh. 6 - Prob. 40RECh. 6 - Prob. 41RECh. 6 - Prob. 42RECh. 6 - Prob. 43RECh. 6 - Prob. 44RECh. 6 - Prob. 45RECh. 6 - Solve each equation for exact solutions over the...Ch. 6 - Prob. 47RECh. 6 - Prob. 48RECh. 6 - Prob. 49RECh. 6 - Prob. 50RECh. 6 - Prob. 51RECh. 6 - Prob. 52RECh. 6 - Prob. 53RECh. 6 - Prob. 54RECh. 6 - Prob. 55RECh. 6 - Prob. 56RECh. 6 - Prob. 57RECh. 6 - Prob. 58RECh. 6 - Prob. 59RECh. 6 - Prob. 60RECh. 6 - Prob. 61RECh. 6 - Prob. 62RECh. 6 - Prob. 63RECh. 6 - Prob. 64RECh. 6 - Prob. 65RECh. 6 - Prob. 66RECh. 6 - 1. Graph y = sin–1 x, and indicate the...Ch. 6 - Find the exact value of each real number y. Do not...Ch. 6 - Give the degree measure of . Do not use a...Ch. 6 - 4. Use a calculator to approximate each value in...Ch. 6 - Evaluate each expression without using a...Ch. 6 - 6. Explain why sin–1 3 is not defined. Ch. 6 - Prob. 7TCh. 6 - Write tan(arcsin u) as an algebraic expression in...Ch. 6 - Prob. 9TCh. 6 - Prob. 10TCh. 6 - Prob. 11TCh. 6 - Prob. 12TCh. 6 - Prob. 13TCh. 6 - Prob. 14TCh. 6 - Prob. 15TCh. 6 - Prob. 16TCh. 6 - Prob. 17TCh. 6 - Prob. 18TCh. 6 - Prob. 19TCh. 6 - Prob. 20T

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