Find the coordinates of the point that divides the join of A(-2, 4, 7) and B(3, -5, 8) extremally in the ratio 2 : 1.
The coordinates of point R that divides the line segment joining points P (x1, y1, z1)
and Q (x2, y2, z2) externally in the ratio m: n are
Point A( -2, 4, 7 ) and B( 3, -5, 8 ), m and n are 2 and 1 respectively.
Using the above formula, we get,
= ( 8,-14,9), is the point that divides the two point A and B externally in the ratio 2:1.
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