名校
1 . 用反证法证明命题:“已知
、
,若
可被
整除,则
、
中至少有一个能被
整除”时,应反设_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9f04cd2bc80c166d49031fe99e6717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9f04cd2bc80c166d49031fe99e6717.png)
您最近一年使用:0次
2021-10-21更新
|
112次组卷
|
5卷引用:天津市红桥区2016-2017学年高二下学期期中理科数学试题
名校
2 . 用数学归纳法说明:
,在第二步证明从
到
成立时,左边增加的项数是________ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a83836cbc0792a9158dbe457378cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
您最近一年使用:0次
2020-02-27更新
|
154次组卷
|
2卷引用:天津市耀华中学2017-2018学年高二下学期期中考试数学试题
3 . 利用数学归纳法证明“
”,从
推导
时原等式的左边应增加的项数是________ 项.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab251352c47ba6f72ebd69b38f6c25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
您最近一年使用:0次