(2012•顺义区二模)函数y=11−x
(2012•顺义区二模)函数y=11−x
(2013•顺义区二模)已知函数f(x)=(3cosx−sinx)sin2x2cosx+12.
(2011•顺义区二模)已知函数f(x)=2−sin(2x+π6)−2sin2x,x∈R
(2012•顺义区二模)下列函数中周期为π且图象关于直线x=π3对称的函数是( )
(2012•顺义区二模)已知向量m=(2cosx2,1),n=(cosx2,−1),(x∈R),设函数f(x)=m•n.
(2012•顺义区二模)如图,在平面直角坐标系xOy中,二次函数y=12x2+bx+c的图象经过点A(-3,6),并与x
(2011•顺义区一模)已知函数f(x)=2sinxcosx+23sin2x−3,(x∈R).
(2010•顺义区二模)已知函数f(x)=13x3+x,则不等式f(2-x2)+f(2x+1)>0的解集是( )
(2011•顺义区二模)请阅读下列材料:
(2011•顺义区二模)衣食住行离不开化学.
(2012•杨浦区二模)已知反比例函数y=k−1x
(2012•杨浦区二模)函数y=11−x