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The value of (sin^(2) 3 A)/(sin^(2) A) -...

The value of `(sin^(2) 3 A)/(sin^(2) A) - (cos^(2) 3 A)/(cos^(2) A)` is equal to

A

`cos 2 A`

B

`8 cos 2 A`

C

`(1)/(8) cos 2 A`

D

`(1)/(2) cos 2 A`

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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
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