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robert_ford80 3 years ago I need to find the unit vector of v = (3,1). see following post for answer.

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1. robert_ford80

$1\div \sqrt{10}$

2. myko

unit vector =v/|v|=(3/sqrt10,1/sqrt10)

3. robert_ford80

hold on i'm trying to figure out how to use this latex editor

4. robert_ford80

I can't figure out how to write fractions with the equation editor

5. Muhammad_Nauman_Umair

there is no unit vector of a point if you want to find the unit vector then v should be a vector it must be written as v=[3,1]

6. robert_ford80

محمد you're right, I made a mistake

7. robert_ford80

can you write fractions with the latex, or do you just use /?

8. Muhammad_Nauman_Umair

unit vector =[3,1]/sqrt(3^2+1^2) =[3,1]/sqrt(10)

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