∫dx/(sin^4 x)(cos^4 x)

求∫1/(sin^4x+cos^4x)dx, ∫dx/(sin^4 x)(cos^4 x) ∫cos^4x/sin^3x dx=? ∫sin(3x)cos(4x)dx= ∫dx/cos^2X+4sin^2X 求微积分 ∫sin^2(x)cos^4(x) dx ∫[1/(sin^2(x)cos^4(x)]dx 求解∫1/(cos^4(x)sin^2(x))dx ∫ sin^4(x)cos^3(x)dx d/dx sin^8(cos(4x)) ∫sin(x) cos^2(x)dx 求不定积分 ∫ sin∧4x/cos∧2x dx求不定积分 ∫ sin∧4x/cos∧2x dx ∫(1-sin/x+cos)dx不定积分 定积分∫(-π/2,π/2)(cos^4x+sin^3x)dx= 问一个积分题,∫sin(5x)cos(4x)dx是多少 ∫ 1/((4(cos x)^2)-((sin x)^2)) dx请问这题要如何解答呢? -π/3 ∫(sin x+cos x)dx=? -π/4 证明∫( 0,π／2 ) (f sin x/(f sin x+f cos x) dx=π /4