Question 1204c

Vectors I: Basics, Dot and Cross Products
Perpendicular Distances

Question

Given the points A(8,1,−4){A \left( 8, 1, - 4 \right)} and B(1,−2,−2),{B \left( 1, - 2, - 2 \right),} what is the perpendicular distance from the point A{A} to the line OB?{OB?}

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