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If A(Cosalpha , Sinalpha), B( Sinalpha,-...

If A(Cos`alpha` , Sin`alpha`), B( Sin`alpha`,-Cos`alpha`), C(1,2) are the verties of a `Delta`ABC, then as `alpha` varies, the locus of its centroid is:

A

`x^(2)+ y^(2)-2x -4y +1=0`

B

`3(x^(2)+y^(2))-2x-4y+1=0`

C

`x^(2) + y^(2)-2x-4y+3=0`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
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