(2007•西城区二模)设x∈R,函数y=k•sinx+sin(3π2−x)
(2007•西城区二模)设x∈R,函数y=k•sinx+sin(3π2−x)
(2011•西城区二模)已知函数f(x)=2sin(x+π4)−13sinx.
(2011•深圳二模)设函数f(x)=sinωx+sin(ωx−π2),x∈R.
(2011•朝阳区二模)已知函数f(x)=2sinx•sin(π2+x)−2sin2x+1(x∈R).
(2007•杭州二模)设函数f(x)=2cosx (cosx+3sinx)−1,x∈R.
(2012•资阳一模)已知函数f(x)=[2sin(x−π3)+sinx]•cosx+3sin2x(x∈R).
设x∈R,求函数y=2sinx+sin[(5π/2)-x]的最小值
(2011•武汉模拟)已知函数f(x)=[2sin(x+π3)+sinx]cosx−3sin2x,x∈R
(2013•绵阳二模)设函数y=f(x)满足:对任意的实数x∈R,有f(sinx)=-cos2x+cos2x+2sinx
(2014•西城区模拟)已知函数f(x)=x-sinx-13ax3,其中a∈R.
(2011•西城区二模)已知函数f(x)=cos2xsin(x+π4).
(2014•西城区二模)设函数f(x)=−x2+4x,x≤41og2x,x>4,若函数y=f(x)在区间(a,a+1)上