1.

If the radical axis of the circles x^(2)+y^(2)+2gx+2fy+c=0 and 2x^(2)+2y^(2)+3x+8y+2c=0 touches the circle x^(2)+y^(2)+2x+2y+1=0, then

Answer»

`g=(3)/(4)" or F"=2`
`g NE (3)/(4), f=2`
`g=(3)/(4)" or f"ne 2`
`g=(2)/(5)" or f"=1`

Answer :A


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