题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-96325.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-31414.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-12838.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-97273.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-67518.gif)
(1)求边长
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-52240.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-96325.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-35489.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-96325.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-21763.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-90293.gif)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-20990.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-97273.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-67518.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-24164.gif)
又通过
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062636-97273.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-38746.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062638-93302.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062638-42502.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062638-53150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-90293.gif)
(2)由
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062638-19977.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062639-99901.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062639-84757.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062639-37829.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062639-27958.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062639-60431.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062637-20990.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062631-88825.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062631-46863.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062631-69318.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-79591.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-53259.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-47980.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-57802.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-89109.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062632-57802.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062628-25947.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062628-85790.gif)
( )
A.1 B.2 C.
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062628-66688.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062629-57813.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062623-50856.gif)
图象如图所示,则当
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062624-25088.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062624-81957.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062620-21415.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062621-69168.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062621-33448.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062621-69168.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062621-33448.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062620-21415.gif)
A.等边三角形 | B.非等边的等腰三角形 |
C.直角三角形 | D.钝角三角形 |
大的海水浴场.这里三面环山,绿树葱茏,现代的高层建筑与传统的别墅建筑巧妙地结合在
一起,景色非常秀丽.海湾内水清浪小,滩平坡缓,沙质细软,自然条件极为优越.
已知海湾内海浪的高度
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062612-93657.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062612-96413.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062612-36332.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062612-69939.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062613-80997.gif)
![]() | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062612-69939.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062614-96970.gif)
(Ⅰ)根据以上数据,求函数
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062614-96970.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062614-78667.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062614-41970.gif)
(Ⅱ)依据规定,当海浪高度高于1米时才对冲浪爱好者开放,请依据(1)的结论,判断一天内从上午8∶00至晚上20∶00之间,哪段时间可对冲浪爱好者开放
![](http://img.shitiku.com.cn/uploads/allimg/20191020/20191020062615-82648.gif)
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