名校
解题方法
1 . (1)对于函数
,若函数定义域为
,求实数
的取值范围;
(2)定义在
上的函数
满足:①
,②当
时,
.求
的值,并证明
在
上是单调增函数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b8d3f8237af4ee0ed9e3bc4f8ba076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14571b516a0a9f3e3bc56778e42b3e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296217d23cb89ea983f761173956eb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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名校
解题方法
2 . 求下列函数的定义域.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57987d293f71ef16046b8113ae0f63be.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933a9cf21c75d2a53e80f5d765b737f1.png)
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解题方法
3 . 记函数
的定义域为
,
的定义域为
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fc857418f9da085ce3fff20454bb3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f40b8c22a3f89b6447922b26591694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca26fbaceab868477712a4e0f07ee77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 求下列函数的定义域:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f42de95cf3258e2f44dbb164443a58a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b564fbbfc6f3198d06b6fb6fcc3bcee3.png)
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5 . 设
.
(1)求函数
的定义域和值域;
(2)判断函数
的奇偶性;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/750a67d66269e1cc546d520f96e0c258.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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名校
解题方法
6 . 若函数
.
(1)求
的定义域
;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cceb782df1eae1714e2c69d58388102.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/599ee186c6c676f03283cb06a6b0ff46.png)
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7 . 已知
.
(1)求
的定义域;
(2)判断
的奇偶性,并证明;
(3)判断
的单调性(不需证明);
(4)求使
成立的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c8a8af02118cf6f1fcbc437727e386.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(4)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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8 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e5428a2a001baa2ed9c8f33478a0ec.png)
(1)当
时,求函数
的定义域和值域.
(2)求使
成立的x的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03208c3f85e3f0bdc6a3c2a8f4642ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e5428a2a001baa2ed9c8f33478a0ec.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/753ddd380ed18f61bf76d52e1f3dc6ca.png)
(2)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03535592817f149e4be75f06987fd819.png)
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2020-12-27更新
|
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3卷引用:江苏省淮安市六校联盟2020-2021学年高一上学期第三次学情调查数学试题
名校
解题方法
9 . 已知函数
,其中
.
(1)求函数
的定义域;
(2)若函数
的最小值为
,求实数a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e0616bd01816e466ec63d76496fe06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
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2020-12-27更新
|
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3卷引用:安徽省皖北县中联盟2020-2021学年高一上学期第二次联考数学试题
名校
10 . 已知函数
;
(1)当
时,求该函数的定义域和值域;
(2)如果
在区间
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cee930d499d12572aaf052194ee9160.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256f3981024e53f373a80aad40e994ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a248e47163191168a1b363937eebd618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-12-26更新
|
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3卷引用:湖南省岳阳市岳阳县第一中学2020-2021学年高一上学期12月月考数学试题