5m Zen
X xy y yx
X xy y yx pictures 5
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X xy y
X xy y yx
dy dx xy y yx x
x/(x-y)(x-z)+y/(y-z)(y xz/(z-x)(z-y)
x y xy 2x yx
y yx dx x xy dy 0
x/(x-y)(x-z)+y/(y-z)(y xz/(z-x)(z-y)u003d0
x yx square xy y square
xy x y 6 5 xy yx 6
simplify x xy y yx
x xy )+ y yx
x xy y yx 3x 4y
