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Questions  

The centre of the circle x = 2 + 3 cos θ, y = 3 sin θ- 1, is

a
(3, 3)
b
(2,-1)
c
(-2,1)
d
(-1, 2)

detailed solution

Correct option is B

We have, x=2+3cos⁡θ and y=3sin⁡θ−1⇒(x−2)2+(y+1)2=32Clearly, it is the equation of a circle having its centre at (2, -1).

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