1 . 如图所示,∠AOB=1rad,点Al,A2,…在OA上,点B1,B2,…在OB上,其中的每一个实线段和虚线段的长均为1个长度单位,一个动点M从O点出发,沿着实线段和以O为圆心的圆弧匀速运动,速度为1长度单位/秒,则质点M到达A3点处所需要的时间为________ 秒,质点M到达An点处所需要的时间为__________ 秒.
![](https://img.xkw.com/dksih/QBM/2011/5/10/1570189865369600/1570189870292992/STEM/5e633e0e-a99d-4e33-a89e-c7d127828eac.png?resizew=247)
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11-12高三上·宁夏银川·阶段练习
2 . 给出下列命题:
①半径为2,圆心角的弧度数为
的扇形面积为
;
②若α、β为锐角,tan(α+β)
,tan β
,则α+2β
;
③函数y=cos(2x
)的一条对称轴是x
;
④
是函数y=sin(2x+
)为偶函数的一个充分不必要条件.
其中真命题的序号是____________
①半径为2,圆心角的弧度数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
②若α、β为锐角,tan(α+β)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c70c0c5a061195b9941796b6a9acc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34efd0021d06e31448496f3673eb2a45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a3e888051ee02f3e07647c93dc380f.png)
③函数y=cos(2x
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4eaa60bbd4c9040b7194492fc661f83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea978f66e6b13f45dc498acf0626e07.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc698b6d2901fc82c1a7c15966f798d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7509459e5f133e81c026c4943be51db0.png)
其中真命题的序号是
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3 . 已知扇形
(
为圆心角)的面积为
,半径为
,则
的面积为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
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2016-12-13更新
|
464次组卷
|
2卷引用:2017届贵州贵阳花溪清华中学高三理9月月考数学试卷
4 . 若
是第三象限角,且
,则
是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ab55147ca5c0f958af43b0637ee31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3491af167949e4a7704956108f6afb12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de4af3e959be275eea5ef88d2a36e88f.png)
A.第二、四象限角 | B.第二象限角 |
C.第三象限角 | D.第四象限角 |
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5 . 一扇形是从一个圆中剪下的一部分,半径等于圆半径的
,面积等于圆面积的
,则扇形的弧长与圆周长之比为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866bdd9a2e183e287133c97735bcb7ed.png)
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6 . 已知
为钝角,且
,则与角
终边相同的角
的集合为__________ .
![](https://img.xkw.com/dksih/QBM/2013/10/31/1571378725830656/1571378731261952/STEM/5764c8a0cab5489396786bb019293df0.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c1fc049a87888752174ddea4187c27.png)
![](https://img.xkw.com/dksih/QBM/2013/10/31/1571378725830656/1571378731261952/STEM/5764c8a0cab5489396786bb019293df0.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2013/10/31/1571378725830656/1571378731261952/STEM/e2a801e52472480588a7adbf16554430.png?resizew=16)
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名校
7 . 最美数学老师手表上的时针长度是1厘米,则时针
(时)转出的扇形面积是______ 平方厘米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15694733427d51a02995963186c5c427.png)
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2020高三·全国·专题练习
8 . 已知圆
与直线
相切于点
,点
,
同时从
点出发,
沿着直线
向右,
沿着圆周按逆时针以相同的速度运动,当
运动到点
时,点
也停止运动,连接
,
(如图),则图中面积
的大小关系是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13dea1bd3d0dd84b8b6f6ff634c5600c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://img.xkw.com/dksih/QBM/2020/8/19/2531425385750528/2534888771117056/STEM/52deb88e40ce4ac29d2d5717c8c822de.png?resizew=159)
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20-21高三上·江西南昌·阶段练习
9 . 已知扇形的圆心角为
,半径为2,则扇形的周长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
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