17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz cos²x-sin²x cos x+sinxcosx cotx−1 cotx

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
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Problem 22RE
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17. Prove the following identities
a. tanx +
1
tanx
1
sinxcosz
b
2
2
cos x-sin x
2
cos x+sinxcosx
||
cotx−1
cotx
Transcribed Image Text:17. Prove the following identities a. tanx + 1 tanx 1 sinxcosz b 2 2 cos x-sin x 2 cos x+sinxcosx || cotx−1 cotx
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