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If tanalpha=3, calculate : (2 sin 2alpha...

If `tanalpha=3,` calculate : `(2 sin 2alpha-3sin2alpha)/(4 sin2alpha+5cos2alpha)`.

A

`1//3`

B

`4//9`

C

`-9//4`

D

`-4//9`

Text Solution

Verified by Experts

The correct Answer is:
C
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