4. Prove the following identities (a) (1−cosx)(1+sec x)=tanxsin x (b) cos Ꮎ 1+ sin 0 + -= 2 sec 0 1+sin 0 cos Ꮎ

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.2: Verifying Trigonometric Identities
Problem 3ECP
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4. Prove the following identities
(a) (1−cosx)(1+sec x)=tanxsin x
(b)
cos Ꮎ
1+ sin 0
+
-= 2 sec 0
1+sin 0
cos Ꮎ
Transcribed Image Text:4. Prove the following identities (a) (1−cosx)(1+sec x)=tanxsin x (b) cos Ꮎ 1+ sin 0 + -= 2 sec 0 1+sin 0 cos Ꮎ
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