求下列不定积分 ∫1/[sin(2x)+2sin x]dx

求下列不定积分 ∫1/[sin(2x)+2sin x]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 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(2x)/(1+cosx)dx 求不定积分∫1/sin^2(3x+4)dx 求∫1/(sin^2 X) dX 的不定积分? 求不定积分 ∫sin2x/(1+sin^2x)dx 求解!