1 . 已知集合
,
.若
,则实数
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514695943af235b19fff35bfa4b6f908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e482c023ae002567286f6fb93bd7ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知
,则
=___________ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35750a89c570f0c893737062c472c98a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc3f52cd9edf88e49e2409f050108d.png)
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3 . 已知函数
,若满足
.
(1)求实数a的值;
(2)证明:
是奇函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533e1399e62346811d92e2bc15fd6a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d1b5c221eae7af0c935cac8bb124f5.png)
(1)求实数a的值;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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4 . 幂函数
的图象经过点(2,8),则
值为_______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14be574d4eaf7f7e0d2b28ade7f3ea1.png)
您最近一年使用:0次
2019-12-28更新
|
59次组卷
|
2卷引用:陕西省延安市黄陵中学2019-2020学年高一上学期期中数学试题
5 . 用定义证明函数
在区间
上是单调递增的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da72530ed5f297feee1cbb20c4dcd560.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c12304c6cf3e8ef56445e632e9549774.png)
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6 . 已知函数
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0535417d5d22cc09aadd82e67a2b1f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002c7f6ac7a73fd6a6272e7ee9d51d4b.png)
A.2 | B.![]() | C.![]() | D.12 |
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7 . 在同一直角坐标系中,函数
与
的图像只能是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e4199718a33c4a468071ae41fc6174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc5bbf1426b9fa7c4d49659797ef34ae.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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8 . 计算下列各式的值:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3017613fd3cf262d07945c04604febb0.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3017613fd3cf262d07945c04604febb0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c541e0eb144d2a165646943f74d9bc6.png)
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9 . 二次函数
的对称轴为
,则当
时,
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca36618e0f3415a95cc0af5e0848f5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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10 . 若
,则函数
的图象一定过点( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a520e74ef818cc62963d0cf3f07be5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15f5ed3f5131029c3d60cb2103dc519.png)
A.(0,0) | B.(1,0) | C.(-1,0) | D.(1,1) |
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