{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
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{化简}[x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]{化简}[x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]{化简}[x+y/(根号x+根号y)]+[2xy/x
{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
[2xy/(x·根号y+y·根号x)]=2根号xy的平方/[根号xy(根号x+根号y)]
=2根号xy/(根号x+根号y)
[x+y/(根号x+根号y)]+2根号xy/(根号x+根号y)=
[(x+y+2根号xy)/(根号x+根号y)]=(根号x+根号y)的平方/(根号x+根号y)]
=(根号x+根号y)]
化简:(根号X/Y)+(根号y/x)
化简(x-y)/(根号x+根号y)
已知x=2y,化简:根号y/根号x -根号y -根号y/根号x +根号y
已知x =2y 化简(根号y/根号x -根号y )-(根号y/根号x +根号y)
化简:((根号x-根号y)^3+2x根号x+y根号y)/(x根号x+y根号y)+(3根号xy-3y)/(x-y)
化简x/(根号x+y)
化简:(x-y)除以(根号x+根号y)-(x-2根号xy+y)除以(根号x-根号y)
关于二次根式的!(根号x+根号y分之根号x + 根号y-根号x分之根号y - x-y分之二倍的根号xy)除以(根号x分之一 - 根号y分之一)*(根号x+根号y)化简!
根号x+根号y分之x-y化简
根号X-Y加上根号Y-X 化简
化简:(根号x+根号y)分之(x+y) +【根号xy乘以(根号x+根号y)】 分之2xy还有一题:根号(xy) -根号(x/y)+根号(y/x)+根号(x/y+y/x+2)
{化简} [x+y/(根号x+根号y)]+[2xy/x·根号y+y·根号x]
化简x十Y/根号x十根号y十2Xy/x根号y十y根号x
化简 x+根号xy+y分之x根号x-y根号y
化简(y根号x+x根号y)/(xy-y²)-(x+根号xy+y)/(x根号x-y根号y).
已知x=2y,y=0,化简,根号y/(根号x-根号y)-根号y/(根号x+根号y)
化简:[(x×根号x+x×根号y)/(xy-y²)]-[(x+根号下xy+y)/(x×根号x-y×根号y)]
x+y/根号X-根号Y-2XY/X乘根号Y-Y乘根号X