x+y=200 (x-100)2+(y-100)2=8
问题描述:
x+y=200 (x-100)2+(y-100)2=8
答
x+y=200 (x-100)2+(y-100)2=8这是要求什么x,y(x-100)2是表示(x-100)的平方恩x+y=200得x=200-y(x-100)2+(y-100)2=8得(200-y-100)2+(y-100)2=82*(y-100)2=8y-100=2或-2y=102或98当y=102时x=98当y=98时x=102