(2010•虹口区一模)已知函数f(x)=sin2x−23cos2x+3,x∈[π4,π2].
(2010•虹口区一模)已知函数f(x)=sin2x−23cos2x+3,x∈[π4,π2].
(2014•马鞍山一模)已知函数f(x)=23sinxcosx−3sin2x−cos2x+2.
(2010•舟山模拟)已知函数f(x)=cos(2x−π3)+sin2x−cos2x.
(2012•昌平区一模)已知函数f(x)=cos(2x-π3)+sin2x-cos2x.
(2011•淮南一模)已知函数f(x)=cos2x−sin2x+23sinxcosx+1.
(2010•江门一模)已知函数f(x)=sin2x−cos2x+12sinx.
(2011•昌平区二模)已知函数f(x)=3sin2x+2cos2x.
(2012•虹口区一模)已知函数f(x)=sin(ωx+π4)
(2012•甘肃一模)(文科)已知函数f(x)=3sin2x+23sinxcosx+cos2x,x∈R.
(2013•潮州二模)已知函数f(x)=3(sin2x−cos2x)−2sinxcosx.
(2007•东城区一模)已知函数f(x)=12cos2x−sinxcosx−12sin2x.
(2010•北京)已知函数f(x)=2cos2x+sin2x-4cosx.