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If sin x+sin ^(2) x=1 then the value of ...

If `sin x+sin ^(2) x=1` then the value of `cos ^(2) x+cos ^(4) x` is

A

2

B

-1

C

0

D

`underline(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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