已知函数f(x)=2asinx2cosx2+sin2x2−cos2x2(a∈R).
已知函数f(x)=2asinx2cosx2+sin2x2−cos2x2(a∈R).
(2008•湖南)已知函数f(x)=cos2x2−sin2x2+sinx.
已知函数f(x)=23sinx2cosx2−(cos2x2−sin2x2).
(2008•石景山区一模)已知函数f(x)=sin(x+π6)+sin(x−π6)+2cos2x2+a(a∈R,a为常数
(2006•重庆一模)已知函数f(x)=a(2cos2x2+sinx)+b.
(2012•四川)已知函数f(x)=cos2x2−sinx2cosx2−12.
(2012•汕头二模)已知函数f(x)=2cos2x2−3sinx.
(2013•湖南)已知函数f(x)=sin(x−π6)+cos(x−π3),g(x)=2sin2x2.
(2012•三明模拟)已知函数f(x)=sin(x+π3)−3cos2x2.
(2008•湖北)已知函数f(x)=sinx2cosx2+cos2x2−2.
函数f(x)=cos2x−2cos2x2的一个单调增区间是( )
(2014•奉贤区一模)已知函数f(x)=sinx2cosx2+3cos2x2.