名校
1 . 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
2 . 执行下面的程序框图,若输入的N是5,那么输出的S=_____ .
![](https://img.xkw.com/dksih/QBM/2016/10/25/1573094622494720/1573094628769792/STEM/503871ba-0ad6-45eb-ae7d-edaae139d42e.png?resizew=213)
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3 . 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
4 . 某公司有工程师6人,技术员12人,技工18人,要从这些人中抽取
个人参加科技大会.如果采用系统抽样和分层抽样的方法抽取,不用剔除个体,如果参会人数增加1个,则在采用系统抽样时,需要在总体中先剔除1个个体,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
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14-15高二上·湖北黄冈·阶段练习
5 . 已知
,应用秦九韶算法计算
时的值时,
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b3425127548e6158050979286f32278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f6ccbb4c090d2e66cda9e5acf44458.png)
您最近一年使用:0次
2016-12-03更新
|
828次组卷
|
4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
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(已下线)2013-2014学年湖北省麻城二中高二上学期第一次月考理科数学试卷2014-2015学年湖北省襄阳市南漳一中等高二12月联考理科数学试卷广西玉林师院附中、玉林十一中等五校2020-2021学年高二上学期期中考试数学(理)试题
9-10高一下·福建宁德·期末
6 . 已知
,
,若
平行,则λ=___________ .
![](https://img.xkw.com/dksih/QBM/2013/6/20/1571249080934400/1571249086488576/STEM/cb040ae0f4594e9e95858c66c6d30c23.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2013/6/20/1571249080934400/1571249086488576/STEM/24a0c30d4c034c758c2cd0dec8f37919.png?resizew=64)
![](https://img.xkw.com/dksih/QBM/2013/6/20/1571249080934400/1571249086488576/STEM/3272713177f14170a0132ed4dbad4fed.png?resizew=101)
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