1 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a5e0c6462e32865cc17c0364457fc4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2 . 将下列对数式改写为指数式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/236b49be967607ef6a4d9954c9268608.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c051da38cb91e75529d5efe5d803fdb8.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd721686c8ee7cbcbabac4c5ef2c2e84.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7bebdb7c4e206c6525a9bf31da823de.png)
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3 . 求值:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b101f5ecc3f1e2556595373a9eb0bfd4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbdc8295e6bf4728ddeb0d5253ac6b9.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2945785f9e33199199ea51162f98f0e7.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766ac0b3d9c427ac65362bfe95b70fb0.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4bb3dd30eba0d7a7e0d2f13abe98de8.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192e30cf9e30fabd3b16db511898f779.png)
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2023-10-08更新
|
511次组卷
|
3卷引用:习题 4-1
4 . 将下列指数式改写为对数式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d58a9daa5736ec597957257887a5d0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f60fd738dfdceae68c1efbcb10fa23d.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb0b1ac402d9fe6f79ffa526d998d6a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09854c17b8faef28da2a68209c7ff055.png)
您最近一年使用:0次
解题方法
5 . 比较下列各题中两个数的大小:
(1)
,
;
(2)
,
;
(3)
,
;
(4)
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a6a917c68cf11ed28247b73c18386cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450f21fdaee3b04dfceb490e0eb49802.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ee06dc94225fb7acc219eee308a1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc9cd7d1888609d26d1f98d2f98456b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ffe3c10b3dffee72996dc81f44d71bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6266400e2f67ea46c0999179febd1ddb.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29c210721c6ffd2cb34c5c843a5224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba46dfa80bb296836da905cffce8f050.png)
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2023-10-08更新
|
95次组卷
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3卷引用:3.2 对数函数的图象和性质
解题方法
6 . 求使下列不等式成立的实数x的集合:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09a038155a6da04528bc93dd478842c.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7571c68c3c10921a2c3aabcbced2f935.png)
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282次组卷
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5卷引用:3.2 对数函数的图象和性质
(已下线)3.2 对数函数的图象和性质北师大版(2019)必修第一册课本习题第四章3.2对数函数y = log 2 x 的的图象和性质(已下线)4.4 对数函数(10大题型)精练-【题型分类归纳】(人教A版2019必修第一册)北师大版(2019)必修第一册课本例题3.2 对数函数y=log2x的图象和性质【导学案】3.2 对数函数y=log2x的图象和性质课前预习-北师大版2019必修第一册第四章对数运算与对数函数
7 . 求值:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
;
(7)
;
(8)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7596013c17c7ab1b77da624a51ab4d1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9ab0de87d0d733cf88e0c6f8ed035c.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72e5954148c566b48d758c8573ea0d31.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a83efb95cb643ccd4e8bc4afc5e34c.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2cf42d826c8103755168ebf9c9d0d1.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/deba0e07e16e94abd714e450558032be.png)
(7)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ab98a363f06d3dc23b41a563f0a54a.png)
(8)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c432ed25fdf08876ca3273380a5afd.png)
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2023-10-08更新
|
128次组卷
|
3卷引用:§1对数的概念
8 . 将下列指数式改写为对数式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6753d357e2eeb4d710ee87f7bfab2fa.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e611e0c10613b9ec55db1ea9dda014.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75df767339de0ed243ecd95a077f92a8.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f3ab85db456b851bb7bed23fc9a187f.png)
您最近一年使用:0次
2023-10-08更新
|
240次组卷
|
3卷引用:§1对数的概念
9 . 将下列对数式改写为指数式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d231817e10ead78d18a88dec02fa64f4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63eef60ec42026e92fcdc5ccf7d5c816.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705549603ef61a0a7faeaeab9348e7fa.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50bf1b6d58e4933aea25e67085d21a0.png)
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2023-10-08更新
|
313次组卷
|
3卷引用:§1对数的概念
10 . 仿照“用计算器求
的值”的方法,证明对数的换底公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5faff5d08e2976e15f0cec988ced37.png)
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37次组卷
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3卷引用:2.2 换底公式