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The equation of one of the circles which...

The equation of one of the circles which touch the pair of lines `x^2 - y^2 + 2y - 1 = 0` is

A

`x^(2) + y^(2) + 2x + 1 = 0`

B

`x^(2) + y^(2) - 2x + 1 = 0 `

C

`x^(2) + y^(2) + 2y -1 =0`

D

`x^(2) + y^(2) - 2y - 1 = 0`

Text Solution

Verified by Experts

The correct Answer is:
C
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