Show the process of this in detail.

Least Squares Estimation of Parameters rv=0iV=0,i=1,2jv=0,j=1,..,bthisshow^=y++^i=yi+y++i=1,2^j=yj+y++j=1,2,,biV=0,i=1,2 Least Squares Estimation of Parameters rv=0iV=0,i=1,2jv=0,j=1,..,bthisshow^=y++^i=yi+y++i=1,2^j=yj+y++j=1,2,,biV=0,i=1,2