JEE Math Practice Question
Let the foot of perpendicular of the point $P(3,-2,-9)$ on the plane passing through the points $(-1,-2,-3),(9,3,4),(9,-2,1)$ be $Q(\alpha, \beta, \gamma)$. Then the distance of $Q$ from the origin is :
- A.$\sqrt{38}$
- B.$\sqrt{29}$
- C.$\sqrt{42}$
- D.$\sqrt{35}$
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