x=4/3,y=1/3,求(√x3-√y3)/(√x-√y)-(√x3+√y3)/(√x+√y)

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x=4/3,y=1/3,求(√x3-√y3)/(√x-√y)-(√x3+√y3)/(√x+√y)
x=4/3,y=1/3,求(√x3-√y3)/(√x-√y)-(√x3+√y3)/(√x+√y)

x=4/3,y=1/3,求(√x3-√y3)/(√x-√y)-(√x3+√y3)/(√x+√y)