求∫x*tan^2x dx

求∫x*tan^2x dx 求不定积分∫(tan^2x+tan^4x)dx 求不定积分 ∫ tan^2 x dx 求不定积分∫(tan^2)x dx 求∫(tan^x+cot^x)dx 求∫1／tan^2x+sin^2x dx 求不定积分∫(tan^2+2)dx∫(tan^2x+2)dx 求∫tan²x dx 求不定积分∫tan（x/2）dx ∫ ( tan^2 x + tan^4 x )dx ∫ tan(2x-5)dx= ∫(e^x) tan (e^x )dx求不定积分! 求不定积分∫tan根号x /根号x dx ∫tan^3x dx 求积分：∫(sec^2(x))*(tan(x))dx,和(0为下限(开根号pi)/2为上限)∫x*sec(x^2)*tan(x^2)dx 求助∫d/dx[X^tan(x^2)]dx 和 ∫dx/(2+3X^2) 求不定积分∫[tan^2x/(1-sin^2x)]dx 积分∫x^2 tan(2x)dx求详解 在线等 急