Find the distance of the point (2, 12, 5) from the point of intersecti – InterviewSolution

1.	Find the distance of the point (2, 12, 5) from the point of intersection of the line r→=2i^-4j^+2k^+λ3i^+4j^+2k^ and r→.i^-2j^+k^=0. [CBSE 2014]
Answer» Find the distance of the point (2, 12, 5) from the point of intersection of the line $\vec{r} = 2 \hat{i} - 4 \hat{j} + 2 \hat{k} + λ (3 \hat{i} + 4 \hat{j} + 2 \hat{k})$ and $\vec{r} . (\hat{i} - 2 \hat{j} + \hat{k}) = 0$ . [CBSE 2014]

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