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  4. The equation of the line joining the points (-2, 4, 2) and (7, -2, 5) are

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Q. The equation of the line joining the points (-2, 4, 2) and (7, -2, 5) are

Introduction to Three Dimensional Geometry

Solution:

Line is $\frac{x+2}{7+2}=\frac{y-4}{2-4}=\frac{z-2}{5-2}$
i.e., $\frac{x+2}{9}=\frac{y-4}{-6}=\frac{z-2}{3}$
i.e., $\frac{x+2}{3}=\frac{y-4}{-2}=\frac{z-2}{1}$