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If sin theta+sin ^(2) theta+sin ^(3) the...

If `sin theta+sin ^(2) theta+sin ^(3) theta=1` then `cos ^(6) theta-4 cos ^(4) theta+8 cos ^(2) theta=`

A

3

B

2

C

4

D

1

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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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