Question 1302d

Vectors II: Lines and Planes
Perpendicular Distance between Lines

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The line l{l} is given by
l1:r=(151)+λ(304),  λR. l_1: \mathbf{r} = \begin{pmatrix} - 1 \\ - 5 \\ 1 \end{pmatrix} + \lambda \begin{pmatrix} 3 \\ 0 \\ 4 \end{pmatrix}, \; \lambda \in \mathbb{R}.
Find the perpendicular distance between the line and the point B(1,1,2).{B \left( - 1, 1, - 2 \right).}

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