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If x = 2 + 3 cos theta and y = 1 -3 sin ...

If `x = 2 + 3 cos theta` and `y = 1 -3 sin theta` represent a circle then the centre and radius is

A

`(2,1) 9`

B

`(2,1), 3`

C

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

D

`(-2, -1), 3`

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B
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