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(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=...

`(sin^2 3A)/(sin^2A)-(cos^2 3A)/(cos^2A)=`

A

`cos2A`

B

`8cos2A`

C

`1/8cos2A`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
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