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Prove the following identities. Show all steps for full marks. a) COS Зл 2 + x = sin x AND, do only ONE of the following, your choice: b) cos(3x) = 4 cos³x - 3 cos x OR c) tan x-sin.x sin ³x secx 1 + cos x

Prove the following identities. Show all steps for full marks. a) COS Зл 2 + x = sin x AND, do only ONE of the following, your choice: b) cos(3x) = 4 cos³x - 3 cos x OR c) tan x-sin.x sin ³x secx 1 + cos x

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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Hello! I need help with this question, please provide full solutions with steps,

For b, do whichever one is easier but also do a.

Thanks!

 

Prove the following identities. Show all steps for full marks. Зл a) COS ( ³7 + x) = + x = sin x 2 AND, do only ONE of the following, your choice: b) cos(3x) = 4 cos³x - 3 cos x OR c) tan x-sin x sin ³ x sec x 1+ cos x
Transcribed Image Text:Prove the following identities. Show all steps for full marks. Зл a) COS ( ³7 + x) = + x = sin x 2 AND, do only ONE of the following, your choice: b) cos(3x) = 4 cos³x - 3 cos x OR c) tan x-sin x sin ³ x sec x 1+ cos x
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