WBJEE 2022 Math Solved Paper
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Two circle S 1 = p x 2 + p y 2 + 2 g ′ x + 2 f ′ y + d = 0 and S 2 = x 2 + y 2 + 2 g x + 2 f y + d ′ = 0 have a common chord P Q . The equation of P Q is
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