已知{4x-5y 2z=0/x 4y-3x=0(xyz不等于0),求x:y:z:d的值已知 4x-5y+2z=0{x+4y-3x=0 (xyz不等于0),求x:y:z:d的值
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已知{4x-5y2z=0/x4y-3x=0(xyz不等于0),求x:y:z:d的值已知4x-5y+2z=0{x+4y-3x=0(xyz不等于0),求x:y:z:d的值已知{4x-5y2z=0/x4y-
已知{4x-5y 2z=0/x 4y-3x=0(xyz不等于0),求x:y:z:d的值已知 4x-5y+2z=0{x+4y-3x=0 (xyz不等于0),求x:y:z:d的值
已知{4x-5y 2z=0/x 4y-3x=0(xyz不等于0),求x:y:z:d的值
已知 4x-5y+2z=0
{
x+4y-3x=0 (xyz不等于0),求x:y:z:d的值
已知{4x-5y 2z=0/x 4y-3x=0(xyz不等于0),求x:y:z:d的值已知 4x-5y+2z=0{x+4y-3x=0 (xyz不等于0),求x:y:z:d的值
4x-5y+2z=0①
x+4y-3z=0②
有②得
4x+16y-12z=0 ③
①-③得
21y-14z=o
即Z=1.5Y④
④带入①
得4X-5Y+3Y=0
既X=0.5Y
∴x:y:z=0.5Y:y:1.5Y=1:2:3
好怀念那逝去的初中时光 现在都是什么微分啊函数啊 能难得你想跳楼
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