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For any the real thetathe maximum value ...

For any the real `theta`the maximum value of`cos^2(costheta)+sin^2(sintheta)` is

A

1

B

`1+sin ^(2)1`

C

`1+ cos ^(2) 1`

D

Does not exist

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The correct Answer is:
B
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VIKAS GUPTA (BLACK BOOK)-APPLICATION OF DERIVATIVES -EXERCISE (SUBJECTIVE TYPE PROBLEMS)
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