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B&C are fixed points having co-ordinates...

`B&C` are fixed points having co-ordinates `(3,0)` and `(-3, 0)` respectively. If the vertical angle `BAC `is `90^@`, thenthe locus of the centroid of the triangle` ABC` has the equation :

A

`x^(2)+y^(2)=1`

B

`x^(2)+y^(2)=2`

C

`9(x^(2)+y^(2))=1`

D

`9(x^(2)+y^(2))=4`

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The correct Answer is:
A
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