Circle
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If ( a , b ) is the common point for the circles x 2 + y 2 − 4 x + 4 y − 1 = 0 and x 2 + y 2 + 2 x − 4 y + 1 = 0 , then a 2 + b 2 =
[AP EAPCET 21 May 2025 S2]
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