求∫(x^3-1)/(x^2+1)dx

求不定积分∫(x^2-3x)/(x+1)dx 求∫x/(1+x)^3 dx 求不定积分 ∫（3x^2-2x+2)dx ∫(2x-1)^2 dx 求 ∫ [(x^3)/(x^2-1)^(1/2)]dx, 求∫(x^3-1)/(x^2+1)dx ∫(x^2-3x+1/2)dx求不定积分 求不定积分∫1/x^2+2x+3dx 求积分(3/2)∫dx/(x^2-x+1) 求积分∫x(x^2-3)^(1/2)dx ∫1/[(x+2√(x+3)]dx 求不定积分 求∫ dx/ (x²-x+1)^(3/2) ∫1/(x^2-4x+3)dx,求不定积分, 求不定积分∫x^3/(1-x^2)dx 求不定积分:∫[x(e^x)]/[(1+x)^2]dx 求∫x*e^x/(1+x)^2dx 求不定积分1)∫3^(-x)*(2*3^x-3*2^x)dx 2)∫cos^2(x/2)dx 求不定积分x+1/x^2+2x+3×dx 求不定积分(3-x)/根号(1+x+x^2)dx