求不定积分∫dx/[x^2×﹙x^2－a^2﹚]

求不定积分 ∫x/(x^2)dx 求不定积分,∫(x^2/(a^2-x^2))dx, 求不定积分∫ x/（x^2+a)dx. 求不定积分∫dx/[x^2×﹙x^2－a^2﹚] 求不定积分dx/x^2 求不定积分∫lnx/x^2 dx 求不定积分：∫sin(x^2)dx 求不定积分∫sin(x/2)dx 求不定积分∫xe^(x^2)dx? 求∫ln x/2 dx不定积分 求不定积分：∫cos x^2 dx ∫[(sin^2)x]dx求不定积分 求不定积分 ∫ tan^2 x dx ∫arctanx/(x^2)dx求不定积分 求不定积分∫(tan^2)x dx 求不定积分∫xcos(x^2)dx 求不定积分∫(Inx/x^2) dx 求不定积分∫(x^2)tanx dx