2x^-5x+8/2x^-5x-5=0,则2x^-5x-1

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2x^-5x+8/2x^-5x-5=0,则2x^-5x-12x^-5x+8/2x^-5x-5=0,则2x^-5x-12x^-5x+8/2x^-5x-5=0,则2x^-5x-12x^-5x+8/2x^-

2x^-5x+8/2x^-5x-5=0,则2x^-5x-1
2x^-5x+8/2x^-5x-5=0,则2x^-5x-1

2x^-5x+8/2x^-5x-5=0,则2x^-5x-1
2x^-5x+8/2x^-5x-5=0
则2x^-5x+8=0
2x^-5x-1=-9

一圆柱和一圆锥体积相等,圆柱底面积是圆锥的四分之一,圆柱高是圆锥高的几分之几 一圆柱和一圆锥半径和体