X-3Y+2Z=02x+3y-8z=0且XYZ不等于0求X:Y:Z=?
问题描述:
X-3Y+2Z=02x+3y-8z=0且XYZ不等于0求X:Y:Z=?
答
式1+式2得3X=7Z式1*2-式2得3Y=4ZX:Y:Z=7:4:302x是什么
X-3Y+2Z=02x+3y-8z=0且XYZ不等于0求X:Y:Z=?
式1+式2得3X=7Z式1*2-式2得3Y=4ZX:Y:Z=7:4:302x是什么