y=2sin(2x+α)在x∈(0,π/2)上是减函数,α∈(0,π)求α

函数y=sin(2x+α)cos(x+α)-cos(2x+α)sin(x+α)在x=π/3处的导函数为 下列函数中,既为偶函数又在(0,π/2)内递增且是周期函数的是A y=sin x B y=cos x C y=sin|x| D y=|sin x| 已知sinx=3/5,x∈(π/2,π),求【sin(x+y)+sin(x-y)】/【cos（x+y）+cos（x-y）】的值 求函数y=sin(2x-π/6)在x∈（0,π/2）上时的值域 函数Y=1+2sin(3x+π/2)在X∈[0,π/3]的值域是 如何用matlab画y=267*sin(x)*sin(x)*cos(x);在（0 2pi）区间 y=sin(2x+a)(0 y=sin(2x+a)（0 y=1-x^2 x>=0 ,y=sin|x|/x x y=(sin x + COS x)^2 解微分方程：x(y´+1)+sin(x+y)=0, y(π/2)=0 y=[sin^2(x)]*[sin^2(x)]求导 y=2sin(2x+π/6）x∈[0,π/2],求值域 函数y=2sin(x+π/6),x∈【0,π/2】,值域是 y=sin^2x+sin (π/2-x)+3sin^2(3π/2-x)若tanx=0.5.求y值;若x∈【0,π/2】求y值域 求y=sin(2x+π/6)x∈(0,π/3)的值域 函数y=sin(x+π/6)（x∈[0,π/2])的值域是 函数y=2sin(x-π/6)(x∈[0,π])的值域请求详解