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1/4[sqrt(3)cos2 3^(@)-sin2 3^(@)]=...

`1/4[sqrt(3)cos2 3^(@)-sin2 3^(@)]=`

A

`cos 43 ^(@)`

B

`cos 7^(@)`

C

`cos 53 ^(@)`

D

None of these

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The correct Answer is:
D
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DISHA PUBLICATION-TRIGONOMETRIC FUNCTIONS -EXERCISE-1
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