(2009•崇明县一模)设函数f(x)=cos(2x+π3)+sin2x.
(2009•崇明县一模)设函数f(x)=cos(2x+π3)+sin2x.
(2011•朝阳区三模)设函数f(x)=cos(2x+π6)+sin2x.
(2010•厦门模拟)设函数f(x)=cos(2x+π3)+sin2x.
(2012•昌平区一模)已知函数f(x)=cos(2x-π3)+sin2x-cos2x.
(2012•崇明县一模)已知函数f(x)=cos(2x+π2 )(x∈R),下面结论错误的是( )
设函数f(x)=cos(2x+π3)+sin2x,
(2009•崇明县二模)函数y=2cos(x+π4)cos(π4−x)
急!高一数学题设函数f(x)=2cos^2x+根号3sin2x-2
(2009•崇明县一模)函数y=2sin(x+π12)cos(x+π4)的最大值、最小值分别为( )
(2010•舟山模拟)已知函数f(x)=cos(2x−π3)+sin2x−cos2x.
(2009•崇明县二模)已知函数f(x)=2sin(π4+2x)cos(π4+2x),x∈R,则f(x)是 (
高一数学设函数f(x)=sin²x+2sin2x+3cos²x 化简