(20人f•江门二模)函数f(x)=sin(πx+π2),x∈[-人,人],则( )
(2009•崇明县二模)已知函数f(x)=2sin(π2+4x),x∈R,则f(x)是( )
(2013•盐城二模)函数f(x)=2sin(x−π4)
(2013•潮州二模)已知函数f(x)=sin(2x+π3)
(2012•江苏二模)已知函数f(x)=sin(π4+x)sin(π4-x)+3sinxcosx(x∈R)
(2011•深圳二模)设函数f(x)=sinωx+sin(ωx−π2),x∈R.
(2010•东城区二模)已知函数f(x)=sinωx,g(x)=sin(2x+π2),有下列命题:
(2012•杭州二模)函数f(x)=sin(x+π2)cosx(x+π6)
(2011•绵阳二模)已知函数f(x)=sin x-cos (x-π6
(2013•南充二模)将函数f(x)=sin(2x+
(2014•辽宁二模)函数f(x)=log0.5[sin(π3
(2013•昌平区二模)已知函数f(x)=sin(π-2x)+23cos2x,x∈R.
(2013•昌平区二模)已知函数f(x)=3sin(π−2x)-2cos2x+1,x∈R.