Question 1304c

Vectors II: Lines and Planes
Equation of a Plane from III

Question

The plane p{p} is given by
p:r⋅(−55−4)=21. p: \mathbf{r} \cdot \begin{pmatrix} - 5 \\ 5 \\ - 4 \end{pmatrix} = 21.
Find the perpendicular distance between the point A(1,5,−1){A \left( 1, 5, - 1 \right)} and the plane.

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