TS EAMCET 20-July-2022 Shift 2 Solved Paper
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Question : 55 of 160
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If ( − 1 , − 1 ) is the radical centre of the circles x 2 + y 2 + 2 g x − 4 y + 4 = 0 , x 2 + y 2 + 6 x + 2 f y + 12 = 0 and x 2 + y 2 + 10 y + 20 = 0 then g − f =
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