Question:medium

A line L is passing through points A(1, 3, 2) and B(2, 2, 1). If mirror image of point P(1, 1, -1) in the line L is (x, y, z) then $x + y + z =$

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Foot of perpendicular $M$ is the average of a point $P$ and its mirror image $P'$.
Updated On: May 12, 2026
  • $\frac{10}{3}$
  • $\frac{13}{3}$
  • $\frac{14}{3}$
  • $\frac{23}{3}$
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The Correct Option is B

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