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Let A(sin theta,cos theta-sin theta),B(c...

`Let A(sin theta,cos theta-sin theta),B(cos theta+sin theta,-cos theta),C(cos theta+sin theta,cos theta-sin theta)` and the locus of centroid of `Delta` ABC, where `theta` is a parameter is given by `(x-2y)^(2)+(px+qy)^(2)=(49)/(9)`then the value of product pq equals

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