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OpenStudy (anonymous):
Let u = <-5, -9>, v = <6, 8>. Find -8u - 2v.
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jimthompson5910 (jim_thompson5910):
u = <-5, -9> -8u = -8<-5, -9> .. multiply both sides by -8 -8u = <-8(-5), -8(-9)> ... multiply each component of the vector by -8 -8u = <40, 72>
jimthompson5910 (jim_thompson5910):
Using the same idea, what is -2v ?
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