∫cos^7x sin^2X dx 区间 [π,-π,]
∫cos^7x sin^2X dx 区间 [π,-π,]
∫sin(x) cos^2(x)dx
证明∫xf(sin x)dx=π/2∫f(sin x)dx 积分区间都是0到π
证明∫( 0,π/2 ) (f sin x/(f sin x+f cos x) dx=π /4
∫e^sin x/(e^sin x+e^cos x)dx在0~π/2上的积分
定积分∫(-π/2,π/2)(cos^4x+sin^3x)dx=
证明∫(0,π/2)sin^m x dx=∫(0,π/2)cos^m x dx
∫sin(7x)cos(10x)dx=?
∫dx/[sin^2(x/2)cos^2(x/2)]
∫sin^2(x)cos^2(x)dx
∫dx/cos^2X+4sin^2X
微积分求解:∫sin^3 (x) cos^2 (x) dx