which of the following is equal to cos^(4)\theta ? a) (3)/(8)-(1)/(2)cos2\theta +(1)/(8)cos4\theta b) (1)/(4) + (1)/(4)cos2\theta c) (3)/(8)+(1)/(2)cos2\theta +(1)/(8)cos4\theta d) 1-sin^(4)\theta e) none of the above

which of the following is equal to cos^(4)\theta ? a) (3)/(8)-(1)/(2)cos2\theta +(1)/(8)cos4\theta b) (1)/(4) + (1)/(4)cos2\theta c) (3)/(8)+(1)/(2)cos2\theta +(1)/(8)cos4\theta d) 1-sin^(4)\theta e) none of the above

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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Question

which of the following is equal to cos^(4)\theta ?

a) (3)/(8)-(1)/(2)cos2\theta +(1)/(8)cos4\theta

b) (1)/(4) + (1)/(4)cos2\theta

c) (3)/(8)+(1)/(2)cos2\theta +(1)/(8)cos4\theta

d) 1-sin^(4)\theta

e) none of the above

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