名校
1 . 求证:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee48dbb902af988191681469b37ce54f.png)
(2)对于任意角
,
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee48dbb902af988191681469b37ce54f.png)
(2)对于任意角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be3552729409fce16518fdc01c7b5b4.png)
您最近一年使用:0次
2 . 证明:
(1)用分析法证明:
;
(2)如果
则
.
(1)用分析法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ffd0a9939714409b3031762ac4b581.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34c590f48c84fe471d1af522c343c59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555f03273614a86b914a488184f41bc9.png)
您最近一年使用:0次
2022-05-12更新
|
191次组卷
|
2卷引用:陕西省宝鸡市金台区2021-2022学年高二下学期期中文科数学试题
3 . 用综合法或分析法证明以下问题:
(1)若
是互不相等的实数,且
,求证:
.
(2)已知
.求证:
.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa4b450e9269a7ef67582e7359f0125.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b2d4c175ae8fadf2da3078ec2904d4.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd185d0e487fab58f8b0bfbb46e4ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba77de7002cfcd4ae007a3c8b813e3b0.png)
您最近一年使用:0次
2022-05-12更新
|
134次组卷
|
2卷引用:陕西省宝鸡市金台区2021-2022学年高二下学期期中理科数学试题
4 . 用分析法证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0e378f470acb90268a7e51d7a31493.png)
您最近一年使用:0次
5 . 用综合法或分析法证明:
(1)如果
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd70f831f301205134280f6432c8f84d.png)
(2)求证
.
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd70f831f301205134280f6432c8f84d.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7677985318eb222a2af0aef6e7dd28.png)
您最近一年使用:0次
6 . 用分析法证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2237b803fc17ccc5bc073a4e023a103.png)
您最近一年使用:0次
7 . 已知
,
,
是
的三边长.
(1)求证:
;
(2)若
的周长为3,求证:
.
![](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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c476d1eb3b34730011ea6c2c76dd8490.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/419c88dbb77fed47148de878336d571c.png)
您最近一年使用:0次
8 . 用分析法证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c19d94ff48082c1cd213c82c99abf0.png)
您最近一年使用:0次
2021-10-10更新
|
214次组卷
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2卷引用:新疆阜康市第一中学2020-2021学年高二下学期期中考试数学(文)试题
9 . 用适当的方法证明下列命题,求证:
(1)
;(
)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/840ab5202c0dd51fb0d9aa14a500fd45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3eb9b6fe8959ae9e71e857b6d6fed49.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/734f585f8cfc92522f6daf997ebec04d.png)
您最近一年使用:0次
2021-10-03更新
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805次组卷
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5卷引用:新疆新源县2020-2021学年高二下学期期末数学(文)试题
名校
10 . 按要求证明下列命题:
(1)(用分析法证明)已知:
是不相等的正数,求证:
;
(2)(用数学归纳法证明)
(
).
(1)(用分析法证明)已知:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98941347dd7ac01f5e63a6c5930dd5fa.png)
(2)(用数学归纳法证明)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b256115e3b54ef332792fa167cc43bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
您最近一年使用:0次
2021-09-03更新
|
146次组卷
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3卷引用:陕西省宝鸡市金台区2020-2021学年高二下学期期中理科数学试题
陕西省宝鸡市金台区2020-2021学年高二下学期期中理科数学试题(已下线)4.4 数学归纳法(课堂培优)-2021-2022学年高二数学课后培优练(苏教版2019选择性必修第一册)河南省实验中学2021-2022学年高二(下)期中数学(理科)试题