Prove the following Trig Identities. 2 2 a. sin x + cos²x + tan²x = sinx−1 -cos²x b. sinx+1 (sinx+1) 1+tan²x 1 C. 2 2 1-tan²x cos x-sin x 1 글 cos x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 54E
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Grade 11 Math

7. Prove the following Trig Identities.
2
2
1
a. sin²x + cos²x + tan²x =
2
cos²x
2
sinx−1
-cos²x
b.
sinx+1
(sinx+1)
1+tan²x
1
C.
2
1-tan x
cos x-sin²x
Transcribed Image Text:7. Prove the following Trig Identities. 2 2 1 a. sin²x + cos²x + tan²x = 2 cos²x 2 sinx−1 -cos²x b. sinx+1 (sinx+1) 1+tan²x 1 C. 2 1-tan x cos x-sin²x
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