Mathematics · 2020
JEE Main · 7 January 2020, Shift 2 · Q74
If the foot of the perpendicular drawn from the point (1, 0, 3) on a line passing through (α, 7,1) is (5/3, 7/3, 17/3), then α is equal to \ \ \ \.
If the foot of the perpendicular drawn from the point ($\displaystyle 1$, $\displaystyle 0$, $\displaystyle 3$) on a line passing through $\displaystyle (\alpha, 7,1)$ is $\displaystyle \left(\frac{5}{3}, \frac{7}{3}, \frac{17}{3}\right)$, then $\displaystyle \alpha$ is equal to
\_\_\_\_.
Official answer
4
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.