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If (tan3A)/(tanA)=arArr (sin3A)/(sinA)=...

If `(tan3A)/(tanA)=arArr (sin3A)/(sinA)=`

A

`(2a)/(a-1)`

B

`(2a)/(a+1)`

C

`a/(a+1)`

D

`a/(a-1)`

Text Solution

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The correct Answer is:
A
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