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Question Number 184258 by universe last updated on 04/Jan/23
2yz−4z+2x−2=02xz−2z+2y−4=02xy−4x−2y+2z+4=0howtofindtheallvaluesofthe(x,y,z)?
Answered by SEKRET last updated on 04/Jan/23
(0,1,−1)(0,3,1)(1,2,0)(2,1,1)(2,3,−1)
{2yz−4z+2x=22xz−2z+2y=42xy−4x−2y+2z=−4z=2−2x2y−4=1−xy−2z=2(2−y)2(x−1)=2−yx−1z=2x+y−2−xy1−xy−2=2−yx−1−(1−x)2=−(2−y)21−x=2−y1−x=y−2y=1−xy=3−xz=1−x1−x−2=1−x−1−x=x−1x+1z=2−1+xx−1=1+xx−1x−1x+1=x+1x−1(x−1)2=(x+1)2x−1=−x−12x=0x=0x=0y=1z=−1y=3−xz=1−x3−x−2=1−x1−x=1x=3−y=2x=2y=1z=1z=2x+y−2−xy=2x−xy+y−2z=x⋅(2−y)−1(2−y)=(x−1)(2−y)z=z=z(x−1)(2−y)=1−xy−2(2−y)2=1y=1y=3x=1y=2z=1x=0y=3z=1y=3x=2z=−1(x−1)(2−y)=2−yx−1(x−1)2=1x=0x=2x=0y=3z=1x=2y=1z=1x=2y=3z=−1(0,1,−1)(0,3,1)(1,2,0)(2,1,1)(2,3¯−1)
Commented by universe last updated on 04/Jan/23
thankssir
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