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1 . 在△ABC中,若B=120°,C=15°,a=2,则此三角形的最大边长为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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13-14高二下·甘肃张掖·阶段练习
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2 . 如图(1)(2)(3)(4)是四个几何体的三视图,这四个几何体依次分别是( )
![](https://img.xkw.com/dksih/QBM/2020/11/11/2590826124271616/2591247857803264/STEM/cd26e8a57fa545e99da8361508e95529.png?resizew=516)
![](https://img.xkw.com/dksih/QBM/2020/11/11/2590826124271616/2591247857803264/STEM/cd26e8a57fa545e99da8361508e95529.png?resizew=516)
A.三棱台.三棱柱.圆锥.圆台 | B.三棱台.三棱锥.圆锥.圆台 |
C.三棱柱.四棱锥.圆锥.圆台 | D.三棱柱.三棱台.圆锥.圆台 |
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2020-11-12更新
|
582次组卷
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8卷引用:四川省成都市树德中学2021-2022学年高一下学期5月阶段性测试数学试题
3 . 设多项式
除以
的商式为
,余式
,其中
为实数,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a22390e38a79e7638b722704272c8de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81843351cfa63bb76c9f39aa96434283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b2373399a8dcbcfaa270d31e5e7bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83c14cf5a64502e8345f6a84012ba0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.0 | B.1 | C.2 | D.3 |
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4 . 设
分别是椭圆
的左、右焦点,
为该椭圆上一点,满足
.若
的面积为2,则
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f9bdc6d9f09e14b037ea7d3ee1f623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
A.1 | B.![]() | C.![]() | D.2 |
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5 . 函数
的最大值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32640b470a14c95f11b5facc3e142403.png)
A.![]() | B.1 | C.![]() | D.![]() |
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6 . 设
分别是等差数列
与
的前
项和,对任意正整数
,都有
若
为质数,则正整数
的值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80cfa0dd330a316deb2c576da63a0c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915c2d93e74539d834b2680daa45de12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c3984de10a443d8a9a9575fec057bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.2 | B.3 | C.5 | D.7 |
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7 . 设
是整数等差列,n为偶数.甲:它的各项之和
是偶数.乙:它的公差d是偶数.那么甲是乙的( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbec176b6facae13391ac55e4e15ec4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
A.充分条件,也是必要条件. |
B.充分条件,但非必要条件. |
C.必要条件,但非充分条件. |
D.既非充分条件,也非必要条件. |
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8 . 若
,则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab87accf1942ab80def96d12ef173163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd141da15b0d2efae4599c35a4e6e29.png)
A.既是奇函数又是增函数. |
B.既是奇函数又是减函数. |
C.既是偶函数又是增函数. |
D.既是偶函数又是减函数. |
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2007高三·四川·竞赛
9 . 如果函数
对于一切实数满足:
,
,则函数
的周期为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce26f6327ca86342dd30d94bace2f7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63be2015f988ccd76fc54b3464df300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.2 | B.5 | C.6 | D.7 |
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