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Concept explainers
True or False for any value of .
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Value of trigonometric identity for any value of .
Answer to Problem 6AYU
Solution:
True. Value of trigonometric identity for any value of .
Explanation of Solution
Given:
Trigonometric identity is in the form of .
Calculation:
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Consider a unit circle.
Equation of a unit circle
If is a point on the unit circle that corresponds to angle then
Using the symmetry, the point on the unit circle corresponds to the angle .
The point has the coordinates .
Using values from equation 2 to obtain the coordinates of .
By definition of trigonometric function
is an odd function.
From equation 4
Value of trigonometric identity in the form .
Chapter 7 Solutions
Precalculus Enhanced with Graphing Utilities
Additional Math Textbook Solutions
Precalculus (10th Edition)
Calculus, Single Variable: Early Transcendentals (3rd Edition)
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
University Calculus: Early Transcendentals (3rd Edition)
Calculus and Its Applications (11th Edition)
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