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Find the euation of normal to the curve ...

Find the euation of normal to the curve ` x=a( cos theta + theta sin theta ) , y=a(sin theta - theta cos theta ) ` at any point `'theta'`

A

it passes through the origin

B

it makes angle `(pi/2+theta)` with the X-axis

C

it passes through `((api)/(2),-a)` origin

D

it is a constant distance from the origin

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