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If the circle x ^(2) + y^(2) + 2gx + 2fy...

If the circle `x ^(2) + y^(2) + 2gx + 2fy+ c=0` touches X-axis, then

A

`sumy_i=0`

B

`sum y_i= -4(f+2a)`

C

`sum x_i= -4(g+2a)`

D

`sum x_i= -2(g+2a)`

Text Solution

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The correct Answer is:
B
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