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

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

Text Solution

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The correct Answer is:
B
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