((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,
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![((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,](/uploads/image/z/31255-7-5.jpg?t=%EF%BC%88%EF%BC%88xx%2Byy%EF%BC%89%2Fy-2y%EF%BC%89%2F%EF%BC%881%2Fy-1%2Fx%EF%BC%89%5E%281%2F%28xx-yy%29%29%E6%8A%B1%E6%AD%89%2C%E5%BE%88%E5%A4%9A%E7%AC%A6%E5%8F%B7%E4%B8%8D%E4%BC%9A%E6%89%93%2C%E2%80%98%2F%E2%80%99%E4%BB%A3%E8%A1%A8%E5%88%86%E6%95%B0%E7%BA%BF%2Cxx%E6%98%AFx%E7%9A%84%E4%BA%8C%E6%AC%A1%E6%96%B9.%E6%88%91%E7%AE%97%E5%87%BA%E6%9D%A5%E7%9A%84%E9%82%A3%E4%B8%AA%E5%BE%88%E9%95%BF%2C%E6%80%80%E7%96%91%E4%B8%8D%E5%AF%B9%2C)
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((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,
((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))
抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,
((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,
原式=[(x²+y²-2y²)/y]/[(x-y)/xy]×1/(x²-y²)
=[(x²-y²)/y]×[xy/(x-y)]×1/(x²-y²)
=xy(x²-y²)/[y(x-y)(x²-y²)]
=x/(x-y)
已知xx+yy+4x-6y+13=0,求(xx-2x)/xx+3yy的值.
若xx+yy-2x-6y+10=0,求分式(xx-yy)/xy的值.
((xx+yy)/y-2y)/(1/y-1/x)^(1/(xx-yy))抱歉,很多符号不会打,‘/’代表分数线,xx是x的二次方.我算出来的那个很长,怀疑不对,
xx-yy-x-y 因式分解
已知2x=3y,求xy/xx+yy-yy/xx-yy的值
[2x-(x+y)(x-y)](yy-xx)
(x-y)(x+y)(xx-yy)=?
XX-YY/(X-Y)(X-Y)约分
matlab怎么写约束条件:常值=x+yx=linspace(1,20,50);y=linspace(1,20,50);[xx,yy]= meshgrid (x,y);(xx+yy=常值)zz=2.*xx.*yy./(xx+yy);surf(xx,yy,zz)
x y x+yy x+y xx+y x y
x y x+yy x+y xx+y x y
已知(x-2)2+1y-31=0,求xx+yy-xy-yx的值.
已知(x-2)2+1y-31=0,求xx+yy-xy-yx的值
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x(x+1)-(xx+y)=-3,求(xx+yy)/2-xy的值
已知x-y=2,(xx)-(yy)=12,求x与y的值
xx+2x+yy+6y+10=0求xx+yy的值