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Q. XY - plane divides the line joining the points A (2, 3, - 5) and B (-1, -2, -3) in the ratio

KCETKCET 2019Three Dimensional Geometry

Solution:

Equation of xy-plane is z = 0
Ratio in which xy-plane
divides=$-\frac{\left(-5\right)}{-3}=-\frac{5}{3}$