解题方法
1 . 已知函数
,
.
(1)当
时,求函数
的值域
(2)如果对任意的
,
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba4fe718dfa5ddb9642ad221fba3bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dce2bfe6e1fde9265d2a07c42bbdf58.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f3fc2a6b50f762c8378283b56023f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a64f604d8732d4c264cc74b8ca5f7ce.png)
(2)如果对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829f3fc2a6b50f762c8378283b56023f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95aee7d702e6bd2776cb6e9b3cbf0022.png)
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名校
解题方法
2 . 已知函数
是指数函数.
(1)求
的解析式;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c10792c1f31920465c185732788164b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81ef71f3946a64b9e2dc18c1a4ed9d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2022-04-19更新
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7卷引用:陕西省榆林市米脂中学2021-2022学年高三上学期四模理科数学试题
3 . 计算下列各式的值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e458d5483fe0b9a25443be90b0bf5839.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec31687c50c63b7484d01c9c6a7d3b7f.png)
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2022-03-09更新
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1593次组卷
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8卷引用:陕西省渭南市大荔县2023届高三上学期一模数学试题
名校
解题方法
4 . 已知
(其中
且
).
(1)若
,
,求实数
的取值范围;
(2)若
,
的最大值大于1,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57cff6029344ee5cc90af6e56a3ba6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd594e99f82b7736c44e18b2721e607f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9af6b8933cb0bcc983a15c903b5892e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0d6a21c1e7eb76dffddc2490b9dc8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92510b6d1484469070906571feeab6cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-01-14更新
|
709次组卷
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6卷引用:陕西省渭南市大荔县2023届高三上学期一模数学试题
解题方法
5 . 已知函数
的定义域为
,
,
,且当
时,
.
(1)求
,并写出一个符合题意的
的解析式;
(2)若
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41c7798e8266916b8501e3837194407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71646d9ebb78e8cd7664821c48d29f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34f820788b99cc40eb1fca0e70473fa.png)
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名校
6 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
,且关于x的不等式
的解集包含
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b97a895d594c8c58d9bd26be7e01188.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309c99d0acad93706ab168d1f9c584bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27487e41215bc3e3ae9a2a507114e1d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b0ac6b4f9198b5da88ed10ef875e369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de71d25c72850e383a4c841eed0db99.png)
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2021-12-09更新
|
365次组卷
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3卷引用:陕西省安康市2019届高三第一次教学质量联考文科数学试题
7 . 已知函数
.
(1)求函数
的单调区间和极值;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81524879a88c86f85c75c76128972f3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c46025ca9f86e363f02653a9084539.png)
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2021-05-21更新
|
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2卷引用:陕西省宝鸡市千阳中学2021届高三下学期第二次适应性训练理科数学试题
名校
解题方法
8 . 已知函数
.
(1)求
的定义域;
(2)若函数
的最小值为
,且当
时,
有解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece2bc8598c18f8ba599bf0f41640f06.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5498e4c926f2a2fb0777f0012d2c64fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cae88dac95d30fa3c682e390a111c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d99e3e25ce03391fcbb4057e79414ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-12-14更新
|
415次组卷
|
6卷引用:陕西省安康市2021届高三下学期第二次教学质量联考文科数学试题
名校
9 . 已知函数
.
(1)求
的定义域与值域;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7192590260ab460ebd636cb2b6157c8d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a335d8648e369063f7ef74e16b1b49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ac03c12cc7934b70e201794fcb0a24d.png)
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2020-03-24更新
|
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3卷引用:陕西省安康市2020届高三第一次教学质量联考文科数学试题
10 . 已知函数
的最小值为
.
(1)求b的值;
(2)若不等式
对
恒成立,求x的取值范围;
(3)若函数
的零点之积大于2,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5db0d880539c093a28e473fa412aec5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/140029aa5f4ec697754ced430c377bb3.png)
(1)求b的值;
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c68816ec45afc5d63528b4d9b13447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe8b4d7e6adc45f8acca028f75101a2.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/308f5521f00021ce8b1278264cde803a.png)
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2020-02-14更新
|
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3卷引用:陕西省安康市2019届高三下学期第二次教学质量联考文科数学试题