求不定积分：∫xcos(4x^2 +5)dx

求不定积分：∫xcos(4x^2 +5)dx 求不定积分∫xcos(x^2)dx 求不定积分,∫sin^2xcos^2x dx 求不定积分(1/sin^2xcos^2x)dx 计算不定积分∫xcos(x/2)dx 求过程跟答案 ∫xcos 3xdx,∫xln(x+1)dx,∫x^2 e^-2x ,∫lnx\根号x dx求不定积分 3道不定积分数学题求下列不定积分(1)cos2t／cost –sint dt(2)cos2x／sin＾xcos^x dx 计算下列不定积分(1)∫xe^(-3x)dx(2)∫xcos(4x+3)dx(3)∫xsin^2 xdx(4)∫x^2 求不定积分 ∫x/(x^2)dx dx/(4x-x^2)求不定积分 ∫xcos（x/2）dx ∫xcos(1+x^2)dx=