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

`(sin(B+A)+cos(B-A))/(sin(B-A)+cos(B+A))=`

A

1) `(cosB+sinB)/(cosB-sinB)`

B

2) `(cosA+sinA)/(cosA-sinA)`

C

3) `(cosA-sinA)/(cosA+sinA)`

D

4) `(cosB-sinB)/(cosB+sinB)`

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