AP EAMCET Engineering 2012 Solved Paper

Section: Mathematics

Question : 87 of 160

Marks: +1, -0

Consider the circle x2+y2−4x−2y+c=0 whose centre is A(2,1). If the point P(10,7) is such that the line segment PA meets the circle in Q with PQ=5, then c is equal to

−15
20
30
−20

Validate

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