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Let x^2 +y^2 -2x-2y-2=0 and x^2 +y^2 -6x...

Let `x^2 +y^2 -2x-2y-2=0` and `x^2 +y^2 -6x-6y+14=0` are two circles `C_1, C_2` are the centre of circles and circles intersect at `P,Q` find the area of quadrilateral `C_1 P C_2 Q` (A) `12` (B) `6` (C) `8` (D) `4`

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