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,
)内是减函数,则( )
)的单调增区间为( )
,kπ+
),k∈Z B.(kπ,(k+1)π),k∈Z
,kπ+
),k∈Z D.(kπ-
,kπ+
),k∈Z
|的周期是
;④y=sin(
+x)是偶函数.其中正确命题的序号是___________,
)的最小正周期是
,则a=__________.
＜x＜2kπ,k∈Z B.2kπ+
≤x＜(2k+1)π,k∈Z
＜x≤kπ,k∈Z D.kπ-
≤x≤kπ,k∈Z
)＜tan(
) B.tan(
)＞tan(
)
)=tan(
) D.大小关系不确定
,
)内的大致图象,那么,由左至右对应的函数关系式应是( )