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Locus of centroid of the triangle whose...

Locus of centroid of the triangle whose vertices are `(a cos t, a sin t), (b sin t, -b cos t)` and (1, 0), where t is a parameter, is :

A

`(3 x-1)^(2)+(3 y)^(2)=a^(2)+b^(2)`

B

`(3 x+1)^(2)+(3 y)^(2)=a^(2)+b^(2)`

C

`(3 x+1)^(2)+(3 y)^(2)=a^(2)-b^(2)`

D

`(3 x-1)^(2)+(3 y)^(2)=a^(2)-b^(2)`

Text Solution

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The correct Answer is:
A
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