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	 Citaat: 
	
 A+3B=4Q (4x,4y,4z)=(5,6,2) Q=(5/4,3/2,1/2) Invullen:B(1,2,1) Q-A=(-3/4,3/2,3/2) 3B-3Q=(-3/4,3/2,3/2) Dus AQ-3QB=0 
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	Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different 
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		Blijkbaar bij C ook al  
	
	
	
	
	
	
	![]() R - A + R - B + 2B - 2C = 0 A + B - 2B + 2C = R + R (2,0,-1)+(1,2,1)+2(1,2,1)+2(0,0,7) = 2(x,y,z) (3,2,0) + (2,4,2) + (0,0,14) = (2x, 2y, 2z) (5,6,16) = (2x, 2y, 2z) --> R(5/2, 3, 8) Maar als ik dit dan weer invul (in mijn eerste lijn, R - A + R...) kom ik niet echt 0 uit...  | 
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	 Citaat: 
	
 Maar je zei: Citaat: 
	
 Vervolgens doe je hier: Citaat: 
	
 
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		(1,2,1) + (2,0,-1) + (0,0,14)=(1+2+0,2+0+0,1-1+14)=(3,2,14) 
	
	
	
	
	
		
		R=(3/4,1/2,7/2) R-A=(-1/4,-3/2,5/2) R-B=(-5/4,1/2,9/2) dus AR+BR=(-3/2,-1,7) R-C=(3/4,1/2,-7/2) 2CR=(3/2,1,-7) AR+BR+2CR=0 Je y-coordinaat klopte niet, je z wel. 
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	Mathematicians are like Frenchmen: whenever you say something to them, they translate it into their own language, and at once it is something entirely different 
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