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求下列各式的值.(1)log535+2-log5-log514;(2)log2×log3×log5.
题目详情
求下列各式的值. (1)log 5 35+2 ![]() ![]() (2)log 2 ![]() ![]() ![]() |
求下列各式的值.
(1)log 5 35+2
-log 5
-log 5 14;
(2)log 2
×log 3
×log 5
.
(1)log 5 35+2
![](https://www.zaojiaoba.cn/zhidao/pic/item/2fdda3cc7cd98d109397dc80223fb80e7aec90c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/55e736d12f2eb938002eaa43d6628535e4dd6fc4.jpg)
(2)log 2
![](https://www.zaojiaoba.cn/zhidao/pic/item/8435e5dde71190efd4b8426ecd1b9d16fcfa60c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/9825bc315c6034a8ea196830c81349540823768c.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/5fdf8db1cb134954b1e538d5554e9258d0094a8c.jpg)
求下列各式的值.
(1)log 5 35+2
-log 5
-log 5 14;
(2)log 2
×log 3
×log 5
.
(1)log 5 35+2
![](https://www.zaojiaoba.cn/zhidao/pic/item/2fdda3cc7cd98d109397dc80223fb80e7aec90c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/55e736d12f2eb938002eaa43d6628535e4dd6fc4.jpg)
(2)log 2
![](https://www.zaojiaoba.cn/zhidao/pic/item/8435e5dde71190efd4b8426ecd1b9d16fcfa60c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/9825bc315c6034a8ea196830c81349540823768c.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/5fdf8db1cb134954b1e538d5554e9258d0094a8c.jpg)
求下列各式的值.
(1)log 5 35+2
-log 5
-log 5 14;
(2)log 2
×log 3
×log 5
.
(1)log 5 35+2
![](https://www.zaojiaoba.cn/zhidao/pic/item/2fdda3cc7cd98d109397dc80223fb80e7aec90c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/55e736d12f2eb938002eaa43d6628535e4dd6fc4.jpg)
(2)log 2
![](https://www.zaojiaoba.cn/zhidao/pic/item/8435e5dde71190efd4b8426ecd1b9d16fcfa60c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/9825bc315c6034a8ea196830c81349540823768c.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/5fdf8db1cb134954b1e538d5554e9258d0094a8c.jpg)
求下列各式的值.
(1)log 5 35+2
-log 5
-log 5 14;
(2)log 2
×log 3
×log 5
.
(1)log 5 35+2
![](https://www.zaojiaoba.cn/zhidao/pic/item/2fdda3cc7cd98d109397dc80223fb80e7aec90c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/55e736d12f2eb938002eaa43d6628535e4dd6fc4.jpg)
(2)log 2
![](https://www.zaojiaoba.cn/zhidao/pic/item/8435e5dde71190efd4b8426ecd1b9d16fcfa60c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/9825bc315c6034a8ea196830c81349540823768c.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/5fdf8db1cb134954b1e538d5554e9258d0094a8c.jpg)
5
![](https://www.zaojiaoba.cn/zhidao/pic/item/2fdda3cc7cd98d109397dc80223fb80e7aec90c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/55e736d12f2eb938002eaa43d6628535e4dd6fc4.jpg)
2
![](https://www.zaojiaoba.cn/zhidao/pic/item/8435e5dde71190efd4b8426ecd1b9d16fcfa60c4.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/9825bc315c6034a8ea196830c81349540823768c.jpg)
![](https://www.zaojiaoba.cn/zhidao/pic/item/5fdf8db1cb134954b1e538d5554e9258d0094a8c.jpg)
▼优质解答
答案和解析
+2
=log 5 5 5 3 3 -1=2.
(2)原式=
=-12.
(1)2(2)-12 |
(1)2(2)-12
(1)2(2)-12
(1)2(2)-12
(1)2(2)-12
(1)2(2)-12 (1)原式=log 5 ![]() ![]() (2)原式= ![]() |
(1)原式=log 5
+2
=log 5 5 3 -1=2.
(2)原式=
=-12.
![](http://hiphotos.baidu.com/zhidao/pic/item/18d8bc3eb13533fa454d439fabd3fd1f40345b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/0823dd54564e92586d77565f9f82d158cdbf4ec4.jpg)
(2)原式=
![](http://hiphotos.baidu.com/zhidao/pic/item/7e3e6709c93d70cfec017abcfbdcd100bba12b8c.jpg)
(1)原式=log 5
+2
=log 5 5 3 -1=2.
(2)原式=
=-12.
![](http://hiphotos.baidu.com/zhidao/pic/item/18d8bc3eb13533fa454d439fabd3fd1f40345b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/0823dd54564e92586d77565f9f82d158cdbf4ec4.jpg)
(2)原式=
![](http://hiphotos.baidu.com/zhidao/pic/item/7e3e6709c93d70cfec017abcfbdcd100bba12b8c.jpg)
(1)原式=log 5
+2
=log 5 5 3 -1=2.
(2)原式=
=-12.
![](http://hiphotos.baidu.com/zhidao/pic/item/18d8bc3eb13533fa454d439fabd3fd1f40345b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/0823dd54564e92586d77565f9f82d158cdbf4ec4.jpg)
(2)原式=
![](http://hiphotos.baidu.com/zhidao/pic/item/7e3e6709c93d70cfec017abcfbdcd100bba12b8c.jpg)
(1)原式=log 5
+2
=log 5 5 3 -1=2.
(2)原式=
=-12.
(1)原式=log 5 5 ![](http://hiphotos.baidu.com/zhidao/pic/item/18d8bc3eb13533fa454d439fabd3fd1f40345b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/0823dd54564e92586d77565f9f82d158cdbf4ec4.jpg)
(2)原式=
![](http://hiphotos.baidu.com/zhidao/pic/item/7e3e6709c93d70cfec017abcfbdcd100bba12b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/18d8bc3eb13533fa454d439fabd3fd1f40345b8c.jpg)
![](http://hiphotos.baidu.com/zhidao/pic/item/0823dd54564e92586d77565f9f82d158cdbf4ec4.jpg)
(2)原式=
![](http://hiphotos.baidu.com/zhidao/pic/item/7e3e6709c93d70cfec017abcfbdcd100bba12b8c.jpg)
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