(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Surface V: a dot x = 9 with a=(2,-3,6). Calculate the distance from O=(0,0,0) to V.

2. Relevant equations

?

3. The attempt at a solution

The shortest distance is perpendicular to V. If n is the normalvector, n dot V = 0.

I've got no clue from here. I think I need to find a proper equation for V, but I don't know how.

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# Calculating distance between point and surface

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