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mar
4
2014
Encontrar a equação vetorial da reta
obtenha uma equação vetorial da reta r que dista 1 do ponto P=(1,2,1), é concorrente com a reta s: P=(-1,1,1)+?(0,-1,2) e paralela à reta t: 2x-z-1=y=2. já procurei em vários sites exercícios...
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