11-12高一下·广东云浮·期中
1 . 给出下面的三个命题,其中正确的命题个数为
①函数
的最小正周期是![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/bdd73b6bd447497285fa6a9d307f5a2e.png)
②函数
在区间
上单调递增
③
是函数
的图象的一条对称轴.
①函数
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/68b16403d5954b6c9deb9f71ceb3015e.png)
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/bdd73b6bd447497285fa6a9d307f5a2e.png)
②函数
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/90b449b2ba914bab89d7104b0246d65d.png)
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/1612035c9d9d474ab938ee43e98c5343.png)
③
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/b0b8f1a703064100ba148a57082be386.png)
![](https://img.xkw.com/dksih/QBM/2012/6/5/1570880096321536/1570880101539840/STEM/d09454211fd440bf8568d1fa5fc5cf31.png)
A.0 | B.1 | C.2 | D.3 |
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11-12高一下·甘肃武威·期中
2 . 若2弧度的圆心角所对的弧长为4cm,则这个圆心角所夹的扇形的面积是
A.4 cm2 | B.2 cm2 | C.8 cm2 | D.2πcm2 |
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9-10高一下·陕西渭南·阶段练习
3 .
等于
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572205183311872/1572205188726784/STEM/9367c146f18e4d47b47d8ecad2d3d8c8.png)
A.sin2-cos2 | B.cos2-sin2 |
C.±(sin2-cos2) | D.sin2+cos2 |
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2013·陕西·模拟预测
4 . 如图,已知圆
:
,四边形
为圆
的内接正方形,
、
分别为边
、
的中点,当正方形
绕圆心
转动时,
的取值范围是
![](https://img.xkw.com/dksih/QBM/2013/5/24/1571228399681536/1571228405129216/STEM/6c0cff1e768b4284a94a5877175a0c00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2013/5/24/1571228399681536/1571228405129216/STEM/053d0d7efba94867a846e1b4311a0452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2013/5/24/1571228399681536/1571228405129216/STEM/1d083c0883b6406e8b97624310c847f1.png)
![](https://img.xkw.com/dksih/QBM/2013/5/24/1571228399681536/1571228405129216/STEM/6c0cff1e768b4284a94a5877175a0c00.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
5 . 已知平面向量
,
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9338520b3ccd2d16e0db9acf8fdd1465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80adc333474c0566529a632cf12c3f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1afa49dbaa99a0d7a7a6d18b3fe42091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 在等腰
中,
,则向量
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e930d844b960c77a678fa64f11964eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abcb5d89b04570ceda2c29e11cb27a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 若向量
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19702ae2c72308f9973ae4c77a62a72e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127dfac893abd9e5455a561ef6134a94.png)
A. ![]() | B.![]() |
C.![]() ![]() ![]() | D. ![]() ![]() ![]() |
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8 . 下列说法正确的是( )
A.数量可以比较大小,向量也可以比较大小 |
B.由于零向量的方向不确定,因此零向量不能与任意向量平行 |
C.模为1的向量都是相等向量 |
D.向量的模可以比较大小 |
您最近一年使用:0次