Math, asked by pawankumar50, 11 months ago

sin(B+A)+cos(B-A) /sin(B-A)+cos(B+A)=cosA+sinA/cosA-sinA​

Answers

Answered by naaz77
1

Step-by-step explanation:

L.H.S=sin(B+A)+cos(B-A)/sin(B-A). +cos(B+A)

=sin(B+A)+sin(90-B+A)/sin(B-A)+sin(90-B-A)

=2sin(45+A).cos(B-45)/2sin(45-A).cos(B-45)

=sin(45+A)/sin(45-A)

or

cosA+sinA/cosA-sinA.

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