G
g_dragon88


1, [TEX] (x+2)^3[/TEX] + [TEX]\frac{ (x+2)^3 }{ (x+1)^3}[/TEX] =16
2, [TEX]\frac{1}{x}[/TEX] + [TEX]\frac{1}{\sqrt{2- x^2}[/TEX] = 2
2, [TEX]\frac{1}{x}[/TEX] + [TEX]\frac{1}{\sqrt{2- x^2}[/TEX] = 2