The polars drawn from (-1 2) to the circ...

The polars drawn from (-1 2) to the circles `s_(1)=x^(2)+y^(2)+6y+7=0 `and `s_(2)=x^(2)+y^(2)+6x+1=0 `are (a) Parallel (b) Equal (c) Perpendicular (d) Intersect at a point

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