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Prove that: (sin x - sin 3x)/(sin^(2)x-c...

Prove that: `(sin x - sin 3x)/(sin^(2)x-cos^(2)x)=2sinx`

A

`-2 sin x`

B

`(2)/(sin x)`

C

`(1)/(sin x)`

D

2 sin x

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The correct Answer is:
D
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MODERN PUBLICATION-MOCK TEST PAPER -IV-SELECT THE CORRECT ANSWER
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