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If x=2+3costheta and y=1-3sintheta repre...

If `x=2+3costheta and y=1-3sintheta` 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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