Math, asked by hruthik2222, 1 year ago

Sin (90°-A)=? Answer this

Answers

Answered by simransrivastava

From the identities and graphs of the trigonometric ratios(all silver tea cups) we get Sin(90-A) = Cos A

Answered by dikshaverma4you

Sin (90°-A) = Cos A....... Sin changes to cos when it is 90 and 270...... And since 90- means 1st quadrant and every trigonometric ratio is +ve in it therefore it is cos A.

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