(2014•安徽模拟)设函数f(x)=2cos2x+23sinxcosx-1(x∈R).
(2014•安徽模拟)设函数f(x)=2cos2x+23sinxcosx-1(x∈R).
(2014•安徽模拟)已知f(x)=3sinxcosx-cos2x+12.
(2011•重庆模拟)已知函数f(x)=23cos2x+2sinxcosx+m(x∈R).
(2013•天津模拟)已知函数f(x)=sin2x+23sinxcosx+3cos2x,x∈R.求:
(2013•惠州模拟)设函数f(x)=2cos2x+sin2x+a(a∈R).
(2013•浙江模拟)已知函数f(x)=23sinxcosx+2cos2x-t.
已知函数f(x)=cos2x+sinxcosx,x∈R.
(2012•月湖区模拟)已知函数f(x)=3sinxcosx−cos2x−12,x∈R.
已知函数f(x)=2cos2x+23sinxcosx-1(x∈R),
(2012•安徽模拟)已知函数f(x)=kxlnx,k∈R.
(2011•安徽模拟)已知函数f(x)=2sin2(π4−x)−23cos2x+3
(2014•达州二模)设函数f(x)=53sinxcosx+6cos2x+sin2x+32.