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If (x)/(y)=(cosA)/(coB) then (x tan A+y ...

If `(x)/(y)=(cosA)/(coB)` then `(x tan A+y tanB)/(x+y)=`

A

`(sinA+cosB)/(cosA+sinB)`

B

`(sinA+sinB)/(cosAcosB)`

C

`"tan"(A+B)/(2)`

D

`"cot"(A-B)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
c
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