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DiogoSantos
@DiogoSantos
April 2020
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Dado os Vetores u=2i-3j , v=i-j e w=-2i-j, determine:
a) 2u-v
b v-u+2w
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igorfelix
A) 2u-v=2.(2,-3) - (1,-1) = (4,-6) - (1,-1)=(3,-5)
b)v-u+2w=(1,-1) - (2,-3) + 2.(-2,-1) = (1,-1) - (2,-3) + (-4,-2) = (1-2-4, -1+3-2)=(-5,0)
6 votes
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DiogoSantos
letra a) esta certa mas a b) no gabario ta (-5,4). Para esse mesmo exercicio tem
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Lista de comentários
b)v-u+2w=(1,-1) - (2,-3) + 2.(-2,-1) = (1,-1) - (2,-3) + (-4,-2) = (1-2-4, -1+3-2)=(-5,0)