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OpenStudy (anonymous):
Let u = <-8, -9>. Find 7u.
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jimthompson5910 (jim_thompson5910):
multiply every component by 7
jimthompson5910 (jim_thompson5910):
u = <-8, -9> 7*u = 7*<-8, -9> 7*u = <7*(-8), 7*(-9)> 7u = <-56, -63>
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