If sintheta=(12)/(13),(0ltthetalt(pi)/(...

If `sintheta=(12)/(13),(0ltthetalt(pi)/(2))and cosphi=-(3)/(5),(piltphilt(3pi)/(2))`. Then , `sin(theta+phi)` will be................ A) `(-56)/(61)` B) `(-56)/(65)` C) `(1)/(65)` D) `-56`

A

`(-56)/(61)`

B

`(-56)/(65)`

C

`(1)/(65)`

D

`-56`

Verified by Experts

The correct Answer is:

B

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