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Let AB be a chord of the circle x^2+y^2=...

Let AB be a chord of the circle `x^2+y^2=a^2` subtending a right angle at the centre. Then the locus of the centroid of triangle PAB as P moves on the circle is:

A

a parabola

B

a circle

C

an ellipse

D

a pair of st. lines

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The correct Answer is:
B
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MODERN PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -MCQs LEVEL - II
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