求∫1/tan^2x+sin^2x dx
求不定积分∫[tan^2x/(1-sin^2x)]dx
求不定积分 (1)((tan x)^2+(tan x)^4) (2)(1/(1+sin x) dx (3) 1/(2x^
求不定积分∫(tan^2x+tan^4x)dx
求不定积分 ∫ tan^2 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
求积分 sin(x^1/2) dx
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