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A(cos theta, sin theta), B (sin theta,- ...

`A(cos theta, sin theta), B (sin theta,- cos theta)` are two points then centroid of triangle formed by A,B and origin lies on a circle whose centre and radius are

A

`(1,1),sqrt(2//3)`

B

`(0,0),sqrt(2//3)`

C

`(0,0),(sqrt(2))/3`

D

`(0,0),3//sqrt(2)`

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The correct Answer is:
C
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