[}–¼] •ûŠá}‚S

[•û’öŽ®] |||5*(X-Y)|-4|-4|+|||5*(X+Y)|-4|-4|=4

[•û’öŽ®‚ÌÀ•WŒn] ’¼ŒðÀ•WŒn

[•û’öŽ®‚ÌÀ•W•Ï”] X,Y

[•`‰æ‚ÌÀ•WŒn] ’¼ŒðÀ•WŒn

[•`‰æ‚ÌÀ•W•Ï”] X,Y

E X:‰¡Ž²AY:cŽ²Ac‰¡“™–Ú·A–Ú·‚Ì’PˆÊ‚P

ƒOƒ‰ƒtƒBƒbƒNƒX‚Ì–ÚŽŸ‚Ö   
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