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If the circle x^2+y^2+2gx+2fy+c=0 is tou...


If the circle `x^2+y^2+2gx+2fy+c=0` is touched by `y=x` at `P` such that `O P=6sqrt(2),` then the value of `c` is
(a) 36
(b) 144
(c) 72
(d) none of these

A

36

B

72

C

144

D

288

Text Solution

Verified by Experts

The correct Answer is:
B
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