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The equation of the line tangent to the ...

The equation of the line tangent to the curve x siny + ysinx = `pi` at the point `((pi)/(2),(pi)/(2))` is

A

`3x+y=2pi`

B

`x-y=0`

C

`2x-y=pi//2`

D

`x+y=pi`

Text Solution

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The correct Answer is:
D
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