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If (sin(x-y))/(sin(x+y))=(3)/(5), then t...

If `(sin(x-y))/(sin(x+y))=(3)/(5)`, then `tanx* coty` is _____

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
(i) Apply componendo and dividendo rule, i.e., `(a)/(b)=(a+b)/(a-b)`
(ii) Use the formula ` sin (x-y) and sin (x+y)`
(iii) And then apply cross multiplication.
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