证明∫(0,π/2)sin^m x dx=∫(0,π/2)cos^m x dx
证明∫(0,π/2)sin^m x dx=∫(0,π/2)cos^m x dx
证明∫(0,π/2)sin^m x cos^m x dx=1/2^m∫(0,π/2)cos^m xdx
证明∫( 0,π/2 ) (f sin x/(f sin x+f cos x) dx=π /4
证明∫xf(sin x)dx=π/2∫f(sin x)dx 积分区间都是0到π
∫sin(x) cos^2(x)dx
∫ sin(mx)cos(nx) 怎么等于1/2 ∫ [sin(m+n)x + sin(m-n)x] dx
证明 定积分(Pi/2 0) f(cos x)dx = 定积分(Pi/2 0) f(sin x)dx
∫sin^3(x)cos^2(x)dx=
∫e^sin x/(e^sin x+e^cos x)dx在0~π/2上的积分
∫(π/2,0)sin^2 x dx=?
定积分∫(-π/2,π/2)(cos^4x+sin^3x)dx=
求解 ∫sin(6x)^3*cos(6x)^8 dx=? 范围[pi/2,0]