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If cos A =-3//5 , sin B=7//25 and 90^(@...

If ` cos A =-3//5 , sin B=7//25 and 90^(@) lt A lt 180^@,0^(@) lt B lt 90^(@) , "then " tan (A+B)=`

A

`3//4`

B

`-3//4`

C

`3//5`

D

`(-3)/(5)`

Text Solution

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The correct Answer is:
B
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