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xx8eAr9iRomezkidid xx8eAr9iRomezkidid
  • 25-01-2017
  • Mathematics
Answered

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

Verified Answer :

ally737
ally737 ally737
  • 25-01-2017

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

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