AP EAMCET Engineering 20 Apr 2019 Shift 1 Paper

Section: Mathematics

Question : 42 of 160

Marks: +1, -0

Two straight rods of lengths 2a and 2b move along the coordinate axes in such a way that their extremities are always concyclic. Then the locus of the centres of such circles is

2 (x2+y2) = a2+b2
2 (x2−y2) = a2+b2
x2+y2 = a2+b2
x2−y2 = a2−b2

Validate

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