丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?

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丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=

丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?
丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?

丨x-2丨+丨x+2y丨+丨-x+y+3z丨=0,则x=?,y=?z=?
绝对值大于等于零
X=2
X+2Y=0,Y=-1
-X+Y+3Z=0,Z=1