(2012•上饶一模)已知函数f(x)=x
(2012•上饶一模)已知函数f(x)=x
(2012•上饶一模)f(x)=sinπ3x−3cosπ3x
(2014•上饶二模)已知f(x)为二次函数,不等式f(x)+2<0的解集为(-1,13),且对任意α,β∈R恒有f(s
(2012•虹口区一模)已知函数f(x)=sin(ωx+π4)
(2008•南汇区一模)已知函数f(x)=x
(2012•资阳一模)已知函数f(x)=13ax3+x2−x,a∈R
(2012•广州一模)已知函数f(x)=tan(3x+π4).
(2012•海淀区一模)已知函数f(x)=sinx+sin(x−π3).
(2012•德州一模)已知函数f(x)=3sinxcosx−cos2x+12(x∈R)
(2012•朝阳区一模)已知函数f(x)=cos(x−π4).
(2013•奉贤区一模)已知函数f(x)=sinπx,x≤0f(x−1),x>0
(2014•普陀区一模)已知函数f(x)=cos2x+23sinxcosx