已知4x-3y+z=0;x+3y-3z=0.并且xyz不等于0,求x,y,z的值
问题描述:
已知4x-3y+z=0;x+3y-3z=0.并且xyz不等于0,求x,y,z的值
答
12x-9y+3z=0
x+3y-3z=0
联立解得 13x-6y=0,y=13x/6
x=a (a≠0)
y=13a/6
z=3y-4x=5a/2