设
是定义在实数集R上的函数,且对任意实数x,y满足
恒成立.
(1)求
,
;
(2)求函数
的解析式;
(3)若方程
恰有两个实数根在
内,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dacc6b3e512777518c7ae56dcfac11b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687faff5dcfcd0f21e3aed90ed2a02cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
2023高三·全国·专题练习 查看更多[1]
(已下线)专题03 函数的概念与性质-2
更新时间:2023-08-14 20:47:57
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知函数
.
(1)计算
;
;
的值;
(2)结合(1)的结果,试从中归纳出函数
的一般结论,并证明这个结论;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd59fed0f819c8fe3e993a4d669b26.png)
(1)计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3467ad6dec1743110442d0a4d062d11a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaacc3cf7cd5cf50cdc6ed7a092bcb73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec62ec2beb125d2ca4011f50a3fcb0ca.png)
(2)结合(1)的结果,试从中归纳出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53428e570866c993ed47dffe8e725471.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】设函数
是定义在
上的减函数,并且满足
,
.
(1)求
的值;
(2)若存在实数
,使得
=2,求
的值;
(3)如果
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6521ef75f0a05fe62cdfd2fbbe0430b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac9f1ca4ea5f9c1d8da0d72ea0a3f21.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d20fd487c74eec4c5bdc1a830da427d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61c543eceb657941e8aabfc87170102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
对一切实数
,
都有
成立,且
.
⑴求
的值.
⑵求
的解析式.
⑶已知
,当
时,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6be06c23c58b16ff4c60c9643e904a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
⑴求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
⑵求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
⑶已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7511e6ce72a5232820b7007f976be9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fee940a9918754da56a8d4216cc2a8.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】(1)已知函数
为二次函数,且
,求
的解析式;
(2)已知
满足
,求
的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce15f69c3142227a84c497b52514361e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754b2d4f798302750c8837dafdc482b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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1】已知函数
,
的最小值为0.
(1)求常数
的值;
(2)若把
图象上的点纵坐标不变,横坐标变为原来的
倍(其中
),得到
的图象.若
在区间
上有且仅有2个零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49139e151812c90da509341625ae2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
(1)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db60e959be980c3bc48cbf4640dbb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知二次函数
满足
,
.
(1)求函数
的解析式;
(2)若关于x的不等式
在
上有解,求实数m的取值范围;
(3)若方程
在区间
内恰有一解,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17ee5f43412795671704ab0e8d0b2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cfc7f05de73d4c0c2b5bc2e0560e65d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a8b2564d48c3554e61d0e4376fb2fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知函数
.
(1)当
时,求
的图像在点
处的切线方程;
(2)若函数
有一个零点,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40807c86ba03682b12668a06f52ef4c5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
R
,
.
(1)求函数
的单调区间;
(2)若关于
的方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5db43ff33c9b673dd3074bde074b4b.png)
为自然对数的底数)只有一个实数根, 求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0101a0bc62662cc0d14580cba38e7132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9f049a5f960728c60a909821b2404b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5db43ff33c9b673dd3074bde074b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7e8d9500cdc12c4e9159c75e516cdc3.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)
解题方法
【推荐2】已知函数
.
(1)若函数
在区间
上单调递增,求
的取值范围;
(2)当
时,求函数
的极值点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0ec60204772d4f4e395654d9ba3a05d.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ce20dd544425c8bd3f2a885eca7bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次