If `A(cosalpha,sinalpha),B(sinalpha,-cosalpha),C(1,2)` are the vertices of ` A B C ,` then as `alpha` varies, find the locus of its centroid.

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:

If A(cosalpha, sinalpha),B(sinalpha- cosalpha) , C (2,1) are the vertices of a DeltaABC , then as alpha varies the locus of its centroid is

if A(cosalpha,sinalpha),B(sinalpha,-cosalpha),C(1,2) are the vertices of DeltABC ,then as alpha Find the locsus of its centroid.

If A(cos alpha, sin alpha), B(sin alpha, -cos alpha), C(1,2) are the vertices of a triangle, then as alpha varies the locus of centroid of the DeltaABC is a circle whose radius is :

If A_(alpha)=[(cosalpha,-sinalpha),(sinalpha,cosalpha)] , then

If A(cos alpha,sin alpha),B(sin alpha,-cos alpha) and C(2,1) are the vertices of a triangle ABC . The locus of the centroid if alpha varies is

If A_(alpha)=[(cosalpha,sinalpha),(-sinalpha,cosalpha)] then (A_(alpha))^2=?