(2011•西城区二模)已知函数f(x)=2sin(x+π4)−13sinx.
(2011•西城区二模)已知函数f(x)=2sin(x+π4)−13sinx.
(2011•西城区二模)已知函数f(x)=cos2xsin(x+π4).
(2011•朝阳区二模)已知函数f(x)=2sinx•sin(π2+x)−2sin2x+1(x∈R).
(2007•西城区二模)设x∈R,函数y=k•sinx+sin(3π2−x)
已知函数f(x)=2sin(x+π4)−13sinx.
已知函数f(x)=sin(π2+x)cos(−x)+4sinx2cos3x2−sinx,
已知函数f(x)=2sinx•sin(π3−x)+3sinx•cosx+cos2x.
(2013•西城区二模)已知函数f(x)=23x3−2x2+(2−a)x+1,其中a>0.
(2014•西城区模拟)已知函数f(x)=x-sinx-13ax3,其中a∈R.
(2012•海淀区一模)已知函数f(x)=sinx+sin(x−π3).
(2012•资阳一模)已知函数f(x)=[2sin(x−π3)+sinx]•cosx+3sin2x(x∈R).
(2013•青岛二模)已知函数f(x)=sin(2x+π6)−2cos2x.