题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-66563.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-54529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-39485.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-66563.png)
(2)设
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-74326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-30566.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-15121.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-35109.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-19759.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-43355.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-32539.png)
解析
试题分析:(1)由等比中项得
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-62539.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-12982.png)
试题解析:(1)因为
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-39485.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-62539.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001032-81477.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-12982.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001029-54529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001032-84604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001032-48363.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001031-43355.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-74326.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001032-16848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001032-43582.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001030-19759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001033-57991.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001033-47185.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001033-66855.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001033-22159.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001034-47903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001034-72113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001034-96566.png)
核心考点
举一反三
(1)设夏某第
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001000-42306.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-61052.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-23122.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-64330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-96068.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-64330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012001001-61052.png)
(2)预计年底夏某还清银行贷款后的纯收入。(参考数据:1.1211≈3.48,1.1212≈3.90,0.1211≈7.43×10﹣11,0.1212≈8.92×10﹣12)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000951-44666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000951-26113.png)
(1)求数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000951-47066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000951-11922.png)
(2)若等差数列
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000951-28777.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000952-80764.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000952-49356.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000952-85498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000952-78003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000953-25725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000927-28036.png)
A.3 | B.4 | C.6 | D.7 |
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000846-41088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000846-37361.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000846-26224.png)
(1)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-33706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-31795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-63273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-54761.png)
(2)已知
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-11735.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-68771.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-79733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-43025.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000847-54140.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000820-63554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000821-84807.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000820-63554.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000821-20108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191012/20191012000821-78229.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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