Math, asked by viratjadon5, 1 year ago

COS 81 - Sin 9 = ???

Answers

Answered by Harsh11Chhetri

answer will be zero as both are complementary angles

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coolboy7526: solve it with the process

Answered by lovepreet984

Hi

Cos81 - Sin 9 = ????

Cos(90-9) - Sin 9

we know that Cos (90- theta) = sin theta

there fore, Cos(90 - 9) = Sin9

Sin9 - Sin9

= 0

Cos 81 - Sin9 = 0

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