1 . 若
=(-8,1),
=(3,4),则
在
方向上的射影是_________
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573094622494720/1573094628745216/STEM/361a020f3db4486bab24191c965b0e2a.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573094622494720/1573094628745216/STEM/0bdcdea3138c4204882bdc81443f16bf.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573094622494720/1573094628745216/STEM/361a020f3db4486bab24191c965b0e2a.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573094622494720/1573094628745216/STEM/0bdcdea3138c4204882bdc81443f16bf.png?resizew=13)
您最近一年使用:0次
名校
2 . ①函数y=cos(
x+
)是奇函数;
②存在实数
,使得sin
+cos
=2;
③若
、
是第一象限角且
<
,则tan
<tan
;
④x=
是函数y=sin(2x+
)的一条对称轴方程;
⑤函数y=tan(2x+
)的图象关于点(
,0)成中心对称图形.
其中正确命题的序号为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
②存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
④x=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c487fec20bd809e0baf5cb39afe8979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54fc6601f0dd2d9719047af13bf48dd.png)
⑤函数y=tan(2x+
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
其中正确命题的序号为
您最近一年使用:0次
2016-12-04更新
|
569次组卷
|
3卷引用:2015-2016学年辽宁大连十一中高一下学期段考二试数学(文)试卷