Mathematics · 2020
JEE Main · 8 January 2020, Shift 2 · Q66
The mirror image of the point (1, 2, 3) in a plane is (-7/3,-4/3,-1/3). Which of the following points lies on this plane?
The mirror image of the point ($\displaystyle 1$, $\displaystyle 2$, $\displaystyle 3$) in a plane is $\displaystyle \left(-\frac{7}{3},-\frac{4}{3},-\frac{1}{3}\right)$. Which of the following points lies on this plane?
Official answer
(3)
($\displaystyle 1$, -$\displaystyle 1$, $\displaystyle 1$)
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.