X+Y-8X+10Y+41=O,求X/Y-Y/X的值
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X+Y-8X+10Y+41=O,求X/Y-Y/X的值X+Y-8X+10Y+41=O,求X/Y-Y/X的值X+Y-8X+10Y+41=O,求X/Y-Y/X的值x*x+y*y-8*x+10*y+41=x*
X+Y-8X+10Y+41=O,求X/Y-Y/X的值
X+Y-8X+10Y+41=O,求X/Y-Y/X的值
X+Y-8X+10Y+41=O,求X/Y-Y/X的值
x*x+y*y-8*x+10*y+41=x*x-8*x+16+y*y+10y+25=(x-4)(x-4)+(y+5)(y+5)=0 得到x=4,y=-5 x/y-y/x=(x*x-y*y)/(xy)=(16-25)/(-20)=9/20
X+Y-8X+10Y+41=O,求X/Y-Y/X的值
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