(2013•门头沟区一模)已知函数f(x)=sin2x+cosxcos(π2-x).
(2013•门头沟区一模)已知函数f(x)=sin2x+cosxcos(π2-x).
(2013•门头沟区一模)已知:函数f(x)=sin2x+3cosxcos(π2-x).
已知函数πf(x)=2cosxcos(x-π/6)-√3(sinx)^2+sinxcosx,
已知函数f(x)=2cosxcos(x-π/6)-√3(sinx)^2+sinxcosx+1
(2012•昌平区一模)已知函数f(x)=cos(2x-π3)+sin2x-cos2x.
已知函数f(x)=sin2x-2sin2x
已知函数f(x)=2cosxcos(π/6-x)-根号下3×sin²x+sinxcosx设x∈【-π/3,π/
(2013•珠海一模)已知函数f(x)=cos2(x+π12)+12sin2x.
(2014•延庆县一模)已知函数f(x)=sinxcosx+sin2x.
(2012•门头沟区一模)已知向量a=(sinx,−1),b=(3cosx,2),函数f(x)=(a+b)2.
已知函数f(x)=3sin2x-2sin2x.
(2013•天津一模)已知函数f(x)=sin2x+acos2x,a,a为常数,a∈R,且f(π4)=0.