—I'm not sure. Maybe they five years ago.
A:married to; got married
B:been married; got married
C:married; married to
D:been married to; got married
构成神经细胞膜的主要成分是 ( )
已知函数fx=cosx-3π2·sin5π2+xcos-x-π,g(x)=2sin2x-π4
(1)化简f(x);
(2)利用“五点法”,按照列表﹣描点﹣连线三步,画出函数g(x)一个周期的图象;
(3)函数g(x)的图象可以由函数f(x)的图象经过怎样的变换得到?