Question

12. IfA=(1,0), B=(-1,0) and C = (2,0) then the locus of the point P such that PA2 + PB2 = 2PC2 is a 1) straight line parallel to y-axis 2) circle with centre (0,0) 3) circle through (0,0) 4) straight line parallel to x-axis
$pa ^{2} + pb ^{2} = 2pc^{2}$
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Answer 1

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