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Let u = <7, -3>, v = <-9, 5>. find 4u - 3v.
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Let u = <7, -3>, v = <-9, 5>. find 4u - 3v.

User Themiurgo
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1 Answer

7 votes
4u-3v=4<7,-3>, -3<-9,5> = <4(7), 4(-3)> = <28,-12> -3(-9), -3(5) = <27, -15>
<28,-12>+<27,-15> =<28+27,-12-15> =<55,-27>
so then 55,-27 should be ur answer

User Zarpio
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