作业帮(x/x-y减y/y-x)除以x+y/xy 初二的分式的运算
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/30 14:38:12
(x/x-y减y/y-x)除以x+y/xy 初二的分式的运算
(x/x-y减y/y-x)除以x+y/xy 初二的分式的运算
(x/x-y减y/y-x)除以x+y/xy 初二的分式的运算
原式
=[x/(x-y)+y/(x-y)]*xy/(x+y)
=(x+y)(x-y) *xy(x=y)
= xy/(x-y)
如追加其它问题,
[x/(x-y)-y/(y-x)]÷(x+y)/xy
=[x/(x-y)+y/(x-y)]÷(x+y)/xy
=[(x+y)/(x-y)]÷(x+y)/xy
=(x+y)/(x-y)*xy/(x+y)
=xy/(x-y)
( x/y - y/x )除以x-y/x结果是
[(x-y)²+(x+y)(x-y)]除以2x
【(x-y)^2+(x+y)(x-y)】除以 2x
求x除以y
{(x,y) |x|+|y|
x>y?x:y
(x-y)³除以（y-x)
[(X-Y)平方-Y平方]除以X
(1-y+x/y)除以y平方-x平方/x
(x/x-y减y/y-x)除以x+y/xy 初二的分式的运算
{(z+y)(x-y)-(x-y)的2次方+2y(x-y)}除以4y
x^/y-x-y^/y-x化简.
化简x(y-x)-y(x-y)
行列式计算 x y x+y y x+y x x+y x y|x y x+y ||y x+y x ||x+y x y |
y/(x+y)-x/(x-y)
X-Y除以根号下X减根号Y
(y分之x减x分之y)除以(y分之x-2)除以（1+x分之y）
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2