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sin(2"Tan"^(-1)3/4)=...

`sin(2"Tan"^(-1)3/4)=`

A

`sin(4"Tan"^(-1)1/3)`

B

`sin(2"Tan"^(-1)1/3)`

C

`cos(2"Tan"^(-1)1/7)`

D

`cos(4"Tan"^(-1)1/7)`

Text Solution

Verified by Experts

The correct Answer is:
C
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