UPSC NDA II 2018 Mathematics Solved Paper

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Question : 51 of 120

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The equation of a circle whose end points of a diameter are (x1,y1) and (x2,y2) is

[NDA II 2018]

(x−x1)(x−x2)+(y−y1)(y−y2)=x2+y2
(x−x1)2+(y−y1)2=x2y2
x2+y2+2x1x2+2y1y2=0
(x−x1)(x−x2)+(y−y1)(y−y2)=0

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