Offline paper
Mathematics · 2017
JEE Main 2017 · 2017-04-02 Offline · Q83
If the image of the point P(1, -2, 3) in the plane, 2 x+3 y-4 z+22=0 measured parallel to the line, x/1=y/4=z/5 is Q, then PQ is equal to:
If the image of the point P($\displaystyle 1$, -$\displaystyle 2$, $\displaystyle 3$) in the plane, $\displaystyle 2 x+3 y-4 z+22=0$ measured parallel to the line, $\displaystyle \frac{x}{1}=\frac{y}{4}=\frac{z}{5}$ is Q , then PQ is equal to :
Official answer
(1)
$\displaystyle 2 \sqrt{42}$
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JEE Main 2017 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.