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

I have trouble solving this following problem: Find a unit vector parallel to this equation 2x-z=4.

The answer is supposed to come out as (2x+4z)/(square root of 20). It would be great if someone can show me how to get this answer.

2. Relevant equations

3. The attempt at a solution

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# Homework Help: Vector Algebra

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