Question

If Sin A = -7/25,Cos B =3/5 then tan(A+B)

Answer 1

Step-by-step explanation:

A+B=90

⇒B=90-A

cos B=3/5

⇒cos (90-A)=3/5       [∵B=90-A]

⇒sin A=3/5               [∵cos(90-A)=sin A]