∫(0 2)dx/(1-x)^2

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∫(0 2)dx/(1-x)^2
求广义积分∫(0→2)dx/(1-x)^2

求暇积分【0,2】∫dx/(1-x)²
原式=【0,1】∫dx/(1-x)²+【1,2】∫dx/(1-x)²
=【0,1】∫dx/(x-1)²+【1,2】∫dx/(x-1)²
=【0,1】∫d(x-1)/(x-1)²+【1,2】∫d(x-1)/(x-1)²
=-1/(x-1)∣【0,1】-1/(x-1)∣【1,2】
=x→1⁻lim[-1/(x-1)]+1-{-1+x→1⁺lim[1/(x-1)]}
=x→1⁻lim[-1/(x-1)]+2-x→1⁺lim[1/(x-1)]=∞(发散).

∫(0 2)dx/(1-x)^2 ∫(0 1)x(arctanx)^2dx ∫0~1(2-X)dx ∫-1~1（2-X三次方)dx ∫X^2/1-x^2 dx. ∫dx/x^2(1-x^2) ∫dx/x^2(1+x^2) ∫1/(x^2+x+1)dx ∫（x^2+1/x^4)dx ∫(1-x)^2/x^3 dx ∫ x/(1+X^2)dx= ∫2 -1|x²-x|dx ∫(x-1)^2/x^3 dx