burhan101
If vector u = [6,1,8] is perpendicular to vector v=[k,4,5], determine value(s) of k



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RadEn
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the rule :
u.v = 0

burhan101
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ohh

burhan101
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so i go backwards ?

arjont
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(6)((k)+(1)(4)+(8)(5)=0 then just solve for k

burhan101
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got it thanks !

arjont
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yeah man it will be on a quiz for sure