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If `x=sectheta-costheta,y=sec^(10)theta-cos^(10)theta` and `(x^(2)+4)((dy)/(dx))^(2)=k(y^(2)+4)`. Then k is equal to

A

`(1)/(100)`

B

1

C

10

D

100

Text Solution

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The correct Answer is:
D
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