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If sin A= 4/5 and cos B =- 12/13, wher...

If ` sin A= 4/5 and cos B =- 12/13, ` where A and B lie in first and third quadrant respectively, then `cos (A+B)=`.................. A) `(56)/(65)` B) `-(16)/(65)` C) `(16)/(65)` D) `-(16)/(56)`

A

`(56)/(65)`

B

`-(16)/(65)`

C

`(16)/(65)`

D

`-(16)/(56)`

Text Solution

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The correct Answer is:
D
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