Which of the following gives the coordinates of a point that divides the line segment joining A(x1,y1) and B(x2,y2) internally in the ratio m:n?
(a) (m+nmx1+nx2,m+nmy1+ny2)
(b) (m−nmx2−nx1,m−nmy2−ny1)
(c) (m+nmx2+nx1,m+nmy2+ny1)
(d) (2x1+x2,2y1+y2)