计算下列各式:
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f45eab3a2d3153581933f402141586.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef4e61e530ed54c455f56378e9decf6.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ade45e8a5d7e61e514f7a9fb48fccf.png)
19-20高一下·上海·课后作业 查看更多[4]
沪教版(上海) 高一第二学期 新高考辅导与训练 第4章 幂函数、指数函数和对数函数(下) 4.8 对数概念及其运算(3)(已下线)第3章+幂、指数与对数精讲精练-2020-2021学年高一数学期末考试高分直通车(沪教版2020,必修一)(已下线)4.3 对数运算(精练)-2020-2021学年一隅三反系列之高一数学新教材必修第一册(人教A版)(已下线)4.2 对数(练习)-高一数学同步精品课堂(苏教版2019必修第一册)
更新时间:2020-06-22 16:37:50
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【推荐2】设正数a,b,c满足a2+b2=c2.求证:log2
1+![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd950ec83d93596468e3aff0bb91e0e9.png)
+log2
1+![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd8d121002c0e23f6af8091f22c2094.png)
=1.
![](https://img.xkw.com/dksih/QBM/2020/8/26/2536268632817664/2539028151779328/STEM/1012cf1512794bf3b511b58c8f45f3e3.png?resizew=10)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd950ec83d93596468e3aff0bb91e0e9.png)
![](https://img.xkw.com/dksih/QBM/2020/8/26/2536268632817664/2539028151779328/STEM/fc6b0ce4f0864c459740f35c7669d2f5.png?resizew=10)
![](https://img.xkw.com/dksih/QBM/2020/8/26/2536268632817664/2539028151779328/STEM/1012cf1512794bf3b511b58c8f45f3e3.png?resizew=10)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcd8d121002c0e23f6af8091f22c2094.png)
![](https://img.xkw.com/dksih/QBM/2020/8/26/2536268632817664/2539028151779328/STEM/fc6b0ce4f0864c459740f35c7669d2f5.png?resizew=10)
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