求一道不定积分,∫x∧3次乘sin(2x∧2+1)dx

求一道不定积分,∫x∧3次乘sin(2x∧2+1)dx 求不定积分∫1/sin^2(3x+4)dx 求不定积分∫sin(x/2)dx 求不定积分：∫sin(x^2)dx ∫[(sin^2)x]dx求不定积分 sin(x^1/2)dx 求不定积分 ∫(x^3 )*(sin x^2) dx 求不定积分 求不定积分x( sin^2)x dx 求不定积分∫[1/(sin^2 cos^2(x)]dx 求不定积分 ∫((1+sin^2x)/(1+cos2x))dx 求不定积分 ∫sin(3x+2)dx? 求不定积分∫ sin(2x+3) dx