Please prove the following ldentities: 1.

Question

Question

math trigonometry

Answer 1

Answer #1

LLewin oing antities coso l-Sino [RatiomL,3aren] tat 4 _ Sine Coso (eso +- (o savl+Sre ะ. 2. Seco-tano+Cos C14-Sins) ,tona]

Answer 2

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