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  • 29-05-2017
  • Mathematics
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Given vectors a=(4,1) and b=(-5,2) find -3a+4b

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3mar 3mar
  • 29-05-2017
  a=(4,1) and b=(-5,2)

-3a+4b=-3(4,1) + 4(-5,2)=(-12,-3) + (-20,8) = (-32,5)



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