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If x = theta . Sin 2 theta, y = theta . ...

If `x = theta . Sin 2 theta, y = theta . cos 2 theta` then dy/dx at `theta = pi/4` is

A

(1/2)

B

(-1/2)

C

`pi/2`

D

`-pi/2`

Text Solution

Verified by Experts

The correct Answer is:
D
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