question_answer

If the foot of the perpendicular drawn from the point (1, 0, 3) on a line passing through \[(\alpha ,\text{ }7,\text{ }1)\]is \[\left( \frac{5}{3},\frac{7}{3},\frac{17}{3} \right),\]then \[\alpha \] is equal to ____________. [JEE MAIN Held on 07-01-2020 Evening]

Answer:

4