Find a unit vector in the same direction as
u= [3,0,-7,-4,2] (column)
Stacey Warren - Expert brainly.com
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sum: 78 ; so length must be sqrt(78)
or did i do something wrong?
I did that and got sqrt 79, yes?
vector = sqrt(78) units
to find a vector of 1 unit, we divide both sides by sqrt(78)
vector/ sqrt(78) = sqrt(78)/sqrt(78) units
vector/ sqrt(78) = 1 unit
therefore, a unit vector is created by dividing the components of the vector by its length
18+10=28 .. not 29 :)
sorry my computer like died so I'm on my friends lol so it's 6/sqrt78 @amistre64 then you times that into each unit thingy
each component then gets divided by the vectors length to obtain components of the unit vector.
another way to notate it is just to scale the original vector by 1/length
oh okay my problem was accepting the fact that my calculator wouldn't put my answers in fractions so I thought I must be wrong hahaha. Thanks!!