(2014•青岛二模)已知函数f(x)=22sinπ8xcosπ8x+22cos2π8x-2,x∈R.
(2014•青岛二模)已知函数f(x)=22sinπ8xcosπ8x+22cos2π8x-2,x∈R.
(2009•荆州模拟)已知函数f(x)=3sinωxcosωx−cos2ωx+12(ω>0,x∈R)的最小正周期为π2.
已知函数f(x)=23sinωxcosωx−2cos2ωx+1(x∈R,ω>0)的周期为π.
已知函数f(x)=2sinωxcosωx-2cos2ωx(x∈R,ω>0),相邻两条对称轴之间的距离等于π2.
(2010•九江二模)已知函数f(x)=sin(π4x−π6)−2cos2π8x+1,x∈R.
(2013•临沂二模)已知x∈R,ω>0,u=(1,sin(ωx+π2)),v=(cos2ωx,3sinωx)函数f(x
(2014•济南二模)已知函数f(x)=cos(π4x-π3)+2cos2π8x.
(2014•浙江二模)已知函数f(x)=2sinωxcos(ωx+π4)+12的最小正周期为2π.
(2013•青岛二模)已知函数f(x)=sin(2x+π6)−2cos2x.
已知函数f(x)=3cos2ωx+sinωxcosωx+a(ω>0,a∈R)图象的两相邻对称轴间的距离为π2.
(2012•韶关二模)函数f(x)=cos2(x−π4)−cos2(x+π4)(x∈R)是( )
(2014•济宁二模)已知函数f(x)=sinωx•cosωx+3cos2ωx-32(ω>0)的最小正周期为π2.