已知函数
是定义在R上的偶函数,且
.
(1)求实数a、b的值,并用定义法证明函数
在
上是增函数;
(2)解关于t的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf73cba44937bc227bed12cf19f12fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
(1)求实数a、b的值,并用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)解关于t的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aae171be56d79d5ffb98cde789cbcb0.png)
更新时间:2022-01-25 19:26:33
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)判断函数
在
上的单调性,并用单调性的定义加以证明;
(2)若
,函数满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e14e3f7094a80d76bb682fe8d09521.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1a827dd2585e57b4a6041eb953a9275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
且
,
(1)求
的值;
(2)判断
在
上的单调性,并用定义给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509095e82c1cd9c97f9b7a15d3740e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c01a939908fc4e312d54f516bdb731b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e881fec40d166eecf66123058faf05fe.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】已知定义在
上的函数
是奇函数,且当
时,
.
(1)求函数
在
上的解析式;
(2)判断函数
在
上的单调性,并用单调性的定义证明你的结论;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa21afadc5d63c3e8ae8e4f8344d0e54.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e8e1c23498053dece274fc224982d8.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4698cd254117be96218b6d4d1dd0fed4.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
是定义在
上的奇函数,且
,若
时,有![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/e8ef57e5fcf041bdaa1f3a66dd7a31c2.png)
(1)证明
在
上是增函数;
(2)解不等式![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/a1fda0f4a46049e5bfd2cf0bc3524b33.png)
(3)若
对
恒成立,求实数
的取值范围
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/e6b473abe857460a909ed37be9fedd78.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/38f8c9a9f9314eb88d359f74e0df5a44.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/aabe158bb3d14d66812b17d9528b8ad5.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/230ec14743f142a98195dd27fc37ffb4.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/e8ef57e5fcf041bdaa1f3a66dd7a31c2.png)
(1)证明
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/e6b473abe857460a909ed37be9fedd78.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/38f8c9a9f9314eb88d359f74e0df5a44.png)
(2)解不等式
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/a1fda0f4a46049e5bfd2cf0bc3524b33.png)
(3)若
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/5e68f4484e5d453cb772addb2b40b188.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/781260a3a8704015ac8104d9af026024.png)
![](https://img.xkw.com/dksih/QBM/2014/7/8/1571816332378112/1571816338268160/STEM/23be78b829d34682ab8eca66cdaffb65.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3】已知函数
为R上的奇函数.
(1)求
的值,并用定义证明函数
的单调性;
(2)求不等式
的解集;
(3)设
,若对任意的
,总存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783184ba489227bf41af54dc4ab080f1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4af8ab5c2d5c608046121880a95ef86.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00e3b48d3d8d52ea09edae3aee8bcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1760522e30613a463766f77d936429e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8749f112832287b0738dd83c5bf255d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3bb43da17137e6c50874a8086df278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题
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适中
(0.65)
名校
解题方法
【推荐1】已知函数
,且
时,总有
成立.
(1)求
的值;
(2)用定义证明函数
的单调性;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d03bc55fec8d33bd51f5a6d1389ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1db6c94b94afc372212a81cc1f4dd9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)用定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
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【推荐2】已知函数
为奇函数.
(1)求实数
的值;
(2)若函数
是定义在
上的奇函数,若
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cbe04b41b1a3181fcfc242ba3ad3aca.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/575ddbd7f165f9694b12c5c3fc2500b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e92f74bdf1ffe9f921dddd7b9c9301d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
解题方法
【推荐1】已知函数
的定义域是
,对定义域内的任意
都有
,且当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8093420c821dfdeee4c37eedfb774898.png)
(1)证明:
是偶函数;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09968b83a76f86fe9c5a5c6234bf3c58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772f31fb195f5834d8e22386ab3c5c5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd858820a22d764b2963b1321b5b3f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8093420c821dfdeee4c37eedfb774898.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebd1b5df8999172512ddd1e1f116e1a5.png)
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适中
(0.65)
名校
【推荐2】设函数
在
上是奇函数,且对任意
都有
,当
时,
.
(1)求
的值;
(2)判断
的单调性,并证明你的结论;
(3)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf52bda10a3ba5be20d20c2ee8f71ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a80f7e98cf9a07b94f192668f3063a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496da87d9c15cf1769ebc60032e7b8fb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7ea535cd56c91bece5793df4dc593d.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(3)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad8dcd3a94bd1ac058a1456b3b77278.png)
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