Studying for finals and I dont recall how to do projection and I don't like the explanation my textbook gives(adsbygoogle = window.adsbygoogle || []).push({});

Problem: Find the distance from the point (1,3,-2) to the plane 2x + y - z = 1

The answer to this problem should be sqrt(6)

Relevant equations: ?

The attempt at a solution:

I know I have to do a projection of using two vectors, and I know one of the vectors is the normal vector to the plane (2i + j + k). I'm not sure how to find the other vector using the point given and which of the vectors is projected onto the other.

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# Homework Help: Straightforward vector calc problem

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