求不定积分∫dx/sin^3 xRT

求不定积分∫dx/sin^3 xRT 求不定积分：∫(sin x/cos^3 x)dx 求不定积分：∫(sin x/cos^3 x)dx ∫(x^3 )*(sin x^2) dx 求不定积分 求不定积分∫ sin(2x+3) 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^4 (x) dx 求不定积分 求不定积分 ∫ sin(ln x) dx 求不定积分∫sin x^2dx 求不定积分 ∫x/sin^2dx 求不定积分∫sin(3x)sin(5x)dx,求详细过程~ 求不定积分∫sin2x/2 dx 求不定积分∫sin² x/2 dx sin^3 x dx 不定积分? 求不定积分∫[1/(sin^2 cos^2(x)]dx 求不定积分?∫ x sin(x/2) dx 求不定积分 ∫ sin^4/cos^2 dx