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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 36 (b) 144 (c) 72 (d) none of these

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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

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

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