Math, asked by faxilkhan, 1 year ago

cos(45+A)- cos(45-A)​

Answers

Answered by shivanikank777
0

Step-by-step explanation:

=COS(45+A)-COS(45-A)

=(COS45COSA-SIN45 SINA) -(COS45COSA+SIN45 SINA)

=COS45COSA-SIN45SINA-COS45COSA-SIN45SINA

=-2SIN45SINA

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