解题方法
1 . 若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb9a9f54c0d29a81d1cd11fed5ced59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9801e8147852eecd7657f0e6dd09066a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59a53a22a94056ce2a02f16607383da0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef2a45773db8d347f0cfa4e4fca7fd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc333eb7094c8d9294d816c0fffcc261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d773e8f41cd19e3efd7465374d0d9945.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d100c22435a23e017cfe6f535379d3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66b8e21fe7ecf3b4c70d23a73485310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f064ddaf0cde845b3eacf84cca179aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)若
,
,设函数
,请求出
的值域并求证:
;
(2)若
,
,
,记
,且
是一个三角形的三条边长,请写出方程
的所有正整数解的集合;
(3)若
是一个等腰钝角三角形的三条边长且
为最长边,求证:
在
时恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b5905520c2d7ba5536552341573fa37.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca27cc54ca0332245f5167488daa3408.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954e74ff18fc27295263b862e7b559fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a917e05cfca420bd81408cc7a02133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e399dbac2fed2f3f99ef9cfce9b5123a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d508536d0c182db3e7f81a919793de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6996c86f28de1714e1ccd1c4f77aaa51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b93521270f25a0bcf1618b39808369f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb6f261914d5f3fdf29325d812af540.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c77befb23ddbca57b9c341f5b9412e.png)
您最近一年使用:0次
名校
解题方法
5 . 设函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d78d07f166872965169d33d77acae3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/569ace36fb0f5aa4a5c721512dfae0e8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
6 . 若函数
(
且
)在
上单调递增,则
不可能的取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c600d982768f0486f7c5ceecfb6b459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d9eebb0705256305ab3bf28898fffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 直线
与函数
分别交于
两点,且
,则函数
的解析式为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5bb184b318d5c0077e6c2b33f8d5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/368fc197b61e01fe6a4a168bb7b375cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7863b54185da5a3f1a765e1aa0577e76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知
,
,
,则a,b,c的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee5645183d82a39f2161a915d2d7c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfa8dc6bf39bc5b721743d95061da62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d09a1ac6d67797edf2fcee3ed501a5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 设
,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c509953fd9a850069f238ecbdc5b44fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/568ad8143bfe6804d54a3daf1e1dd540.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6e1c557a713ac5c82a01486da9bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1574cf1c213b4961188e8ae32d017114.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次