对于不等式
,某学生运用数学归纳法的证明过程如下:①当
时,
,不等式成立;②假设
时,不等式成立,即:
,则
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5890364a12b49876fb34e7f8c188d5.png)
,所以当
时,不等式成立,回答下列问题:
(1)上述证法___________(填字母)
A.过程全部正确
B.
验证不正确
C.过程全部不正确
D.从
到
推理不正确
(2)如果选择A,无需证明;如果选择B,C,D中的一个(选择原因正确的),请用“数学归纳法”证明该不等式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d664c0fc0aea86349607fec7dc61a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fae4f95b1eb365c6e7c6737309e37dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13dd1d3b1280bc6feede3cdb67d2b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037c4494f2cbb87c2b23fef330719936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e5890364a12b49876fb34e7f8c188d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21832c28b5333dca4c4e8035ba4d23dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
(1)上述证法___________(填字母)
A.过程全部正确
B.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
C.过程全部不正确
D.从
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
(2)如果选择A,无需证明;如果选择B,C,D中的一个(选择原因正确的),请用“数学归纳法”证明该不等式.
更新时间:2021-04-30 12:26:30
|
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解答题-问答题
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适中
(0.65)
【推荐2】已知数列
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(1)试求出
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(2)用数学归纳法证明你的猜想.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f3062202049283fd42dbf5251fb61c8.png)
(1)试求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)用数学归纳法证明你的猜想.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】用数学归纳法证明对一切大于
的自然数
,不等式
均成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e037ec8e169b146a6b2b4ba2550da1ae.png)
您最近一年使用:0次