(2011•烟台一模)已知函数f(x)asinxcosx+4cos2x,x∈R,f(π6)=6.
(2014•烟台一模)已知函数f(x)=sin(7π6−2x)−2sin2x+1(x∈R),
已知函数f(x)=asinxcosx-2cos2x+1的图象经过点(π8,0).
(2013•天津)已知函数f(x)=−2sin(2x+π4)+6sinxcosx−2cos2x+1,x∈R.
(2012•德州一模)已知函数f(x)=3sinxcosx−cos2x+12(x∈R)
(2012•江门一模)已知函数f(x)=(1+cos2x)sin2x,x∈R.若f(α)=14
(2014•重庆三模)已知函数f(x)=sin(7π6-2x)+2cos2x-1(x∈R).
(2014•东莞二模)已知函数f(x)=2sin2x+2cos2x,x∈R.
(2011•重庆模拟)已知函数f(x)=23cos2x+2sinxcosx+m(x∈R).
(2013•石景山区一模)已知函数f(x)=sin(2x+π6)+cos2x.
(2012•甘肃一模)(文科)已知函数f(x)=3sin2x+23sinxcosx+cos2x,x∈R.
已知函数f(x)=sin(2x−π6)+2cos2x−1(x∈R).
(2014•湖北二模)已知函数f(x)=cos(2x−2π3)−cos2x(x∈R ).