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

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

A

`4 cos 2A `

B

`8 cos 2A `

C

`1/8 cos 2A `

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
B
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