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B. For the given values of the variables, verify that the equation is not an identity. 3. cos 2x = 2 sin x, for x = 30° 4. sin x = sin ( 90º° – x ), for x = 30°

B. For the given values of the variables, verify that the equation is not an identity. 3. cos 2x = 2 sin x, for x = 30° 4. sin x = sin ( 90º° – x ), for x = 30°

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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B. For the given values of the variables, verify that the equation is not an identity. 3. cos 2x = 2 sin x, for x = 30° 4. sin x = sin ( 90° – x ), for x = 30°
Transcribed Image Text:B. For the given values of the variables, verify that the equation is not an identity. 3. cos 2x = 2 sin x, for x = 30° 4. sin x = sin ( 90° – x ), for x = 30°
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