Math, asked by Elaeh, 1 year ago

(Seca-tana)^2=1-sina/1+sins
Prove it

Answers

Answered by sandeshn

2

(seca-tana)²=(1-sina)²/(1-sina)(1+sina)
=1-sina/1+sina
cos²a=1-sin²a=1-sina×1+sina

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