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If ( sin (x+y))/(sin (x-y))=(a+b)/(a-b) ...

If `( sin (x+y))/(sin (x-y))=(a+b)/(a-b) " then " ( tan x)/(tan y)= `

A

`a//b`

B

`b//a `

C

`1`

D

`0`

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The correct Answer is:
A
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