已知
.
(1)设函数
,若函数
与
的图象无公共点,求m的取值范围;
(2)令
的最小值为T.若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91aafaba36bf34d052ee85f12cc0a398.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3592aa85c9120fd042816dd47bba82ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12d6e540dc3435961c9c44d4805a375f.png)
更新时间:2024-06-08 09:59:35
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
是二次函数,其函数图像经过(0,2),
在
时取得最小值1.
(1)求
的解析式.
(2)求
在[k,k+1]上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
的表达式为
.
(1)若
,求函数
的值域;
(2)当
时,求函数
的最小值
;
(3)对于(2)中的函数
,是否存在实数
,同时满足下列两个条件:(i)
;(ii)当
的定义域为
,其值域为
;若存在,求出
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48ad5060480bae6eea47353f7e3af9b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf210ca57cb4ca00ab4c9acbd582347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
(3)对于(2)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4347311d24377937dbe6ae4b032facd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2ac429737efebf150a1bd088ba846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db527571cfd256c515424c6f9d114284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819871784cadce4632b13f758f77c691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
.
(1)当
时,求不等式
的解集;
(2)设
,且当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640fe6a6490e72479b12634ec5ac5c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538556fa2d8797af416ae3167fd74dd5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e312eca38032174f9739126b81d012.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7b5582e1931243dbb90b7591137f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facf8c2f4c22876875f75e856ea0a2a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
,
.
.
(1)若
的解集为R.求实数a的取值范围;
(2)若
在
上有解,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/726e871b47bd08e0771037ef337c9b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2670d9992e24b738a3f5ba08814075fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e59f9aac1ae0f7f050e8aafec6df31.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d99e3e25ce03391fcbb4057e79414ba.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e312eca38032174f9739126b81d012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc548dc9512f29922c422da279b3de18.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
真题
【推荐1】 A.选修4 - 1:几何证明选讲
如图,在四边形ABCD中,△ABC≌△BAD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/2fb8b93f-94db-4268-8eb7-7406b5fa70c1.png?resizew=150)
求证:AB∥CD.
B.选修4 - 2:矩阵与变换
求矩阵
的逆矩阵.
C.选修4 - 4:坐标系与参数方程
已知曲线C的参数方程为
(
为参数,
),求曲线C的普通方程.
D.选修4 - 5:不等式选讲
设
≥
>0,求证:
≥
.
如图,在四边形ABCD中,△ABC≌△BAD.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/4/2fb8b93f-94db-4268-8eb7-7406b5fa70c1.png?resizew=150)
求证:AB∥CD.
B.选修4 - 2:矩阵与变换
求矩阵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa537c9a8b597c99e7fc6165843593b.png)
C.选修4 - 4:坐标系与参数方程
已知曲线C的参数方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624ae69d616d8118c4e196d5658f4e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
D.选修4 - 5:不等式选讲
设
![](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/d318a788e491a9169b56ba90cf4dbe7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662c2bb1fdc296fcd2effd0a9b45fe06.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知
分别是
的三个内角
的对边.
(1)若
成等比数列,证明:
;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149300e35683c15e6643ae9ef0b39ed6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4089a9503a744e5a81a10c8ac82cdb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba85a9e0c7ecc82a5ad498e3c2c6ab9.png)
您最近一年使用:0次