(2014•海淀区二模)已知函数f(x)=23sinxcosx-2sin2x+a,a∈R.
(2014•海淀区二模)已知函数f(x)=23sinxcosx-2sin2x+a,a∈R.
(2014•东城区二模)已知函数f(x)=sin2x+3sinxcosx.
(2014•海淀区二模)已知函数f(x)=13x3+ax2+4x+b,其中a、b∈R且a≠0.
(2014•甘肃二模)已知函数f(x)=sin2x+23sinxcosx+3cos2x.
(2014•四川二模)已知函数f(x)=cos2x-sin2x+23sinxcosx.
(2014•四川二模)已知函数f(x)=23sinxcosx-3sin2x-cos2x+3.
(2012•黄浦区一模)已知函数f(x)=2sin2x+23sinxcosx−1(x∈R).
(2013•红桥区二模)已知函数f(x)=sin2x+2sinxcosx+3cos2x.
(2011•顺义区一模)已知函数f(x)=2sinxcosx+23sin2x−3,(x∈R).
已知函数f(x)=2cos2x+3sin2x+a(a∈R).
(2014•延庆县一模)已知函数f(x)=sinxcosx+sin2x.
(2009•台州二模)已知函数f(x)=sin2x+23sinxcosx+3cos2x.