The origin is the centroid of `/_\ABC` with the vertices `A(alpha, 1, 3),B(-2, beta, -5) and
Channel: Doubtnut
Date: 2020-04-12

The origin is the centroid of `/_\ABC` with the vertices `A(alpha, 1, 3),B(-2, beta, -5) and C(4,7,gamma)` find the values of `alpha, beta, gamma`.