Image of Point in Line (Jee Mains)

3D Line Equations and Skew

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Image of Point in Line

If the image of the point P (1, 2, a) in the line $\frac{{x - 6}}{3} = \frac{{y - 7}}{2} = \frac{{7 - z}}{2}$ is Q(5, b, c), then a² + b² + c² is equal to

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