设函数
满足
.
(1)判定
的奇偶性并说明理由;
(2)当
为奇函数时,是否存在常数
,使得关于
的不等式
在区间
上的解集非空,若存在,求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e516a87b4ceafdc6a0eb18cabf9e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/000300254d5fa8687ec66ca46c05d871.png)
(1)判定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d536cdf2c49668e88052773e7cfe3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
22-23高一下·四川德阳·期末 查看更多[2]
更新时间:2023-07-07 21:31:27
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解答题-证明题
|
适中
(0.65)
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解题方法
【推荐1】已知函数
,
,从下面两个条件中任选一个条件,求出
,
的值,并解答后面的问题.(注:如果选择多个条件分别解答,按第一个解答计分)①已知函数
,
在定义域
上为偶函数;②已知函数
在
上的值域为
;
(1)选择______,求
,
的值;
(2)证明
在
上单调递增;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee61de7405366499c9415379670d8b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998d1117b68d345ad988e86d1ec7724b.png)
![](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/8ace31cbcf8ca0b50ba61534d591a9a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832d7c2afdfb67cd7072c4b8000fd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9acb1e03d214518b0452c103fca291d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7242b2ab643f9470da77e29d043b893.png)
(1)选择______,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc30165c18de623d0a3efb961e606d1c.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5c199e73e832ac2dbab6446247b837a.png)
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解答题-问答题
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解题方法
【推荐2】已知函数
,且
..
(1)判断
的奇偶性,并证明你的结论;
(2)若
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f187bbb542144f3b7df8db42e5a979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e68a711b8bafbfdae1dc6e4a477675d.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074b1adc4da492038d62386ee65f96c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐3】对于函数
,
(1)判断其奇偶性,并指出图象的对称性;
(2)画此函数的图象,并指出其单调区间.
(3)讨论方程
的解的个数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2351710c91d225375623c79d7507c88a.png)
(1)判断其奇偶性,并指出图象的对称性;
(2)画此函数的图象,并指出其单调区间.
(3)讨论方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72c77a9531c3fd1d25b927cc29b0ad59.png)
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【推荐1】定义在R上的函数f(x)>0,对任意x,y∈R都有f(x+y)=f(x) f(y)成立,且当x>0时,f(x)>1.
(1)求f(0)的值;
(2)求证f(x)在R上是增函数;
(3)若f(k•3x)f(3x﹣9x﹣2)<1对任意x∈R恒成立,求实数k的取值范围.
(1)求f(0)的值;
(2)求证f(x)在R上是增函数;
(3)若f(k•3x)f(3x﹣9x﹣2)<1对任意x∈R恒成立,求实数k的取值范围.
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【推荐2】已知函数
.
(1)判断函数
的奇偶性,并给出证明;
(2)判断函数
在
上的单调性;
(3)解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4216c3b0840bcb7c7a846bfb21e25e3e.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b7cefc80bf9f008c8781268d973227.png)
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解答题-证明题
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【推荐3】已知
是定义在
上的奇函数,且
,若
,
时,有
.
(1)证明:
在
上是增函数;
(2)解不等式
;
(3)若
对
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d87cd4403487962c38c8707ba3ab3fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ee1a0ed62d4e52bcc70baa678d9ade.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4440dae5b564c68d767e66a7481d943.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d476f14a11d6a5aae028fe1d4b52c7.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2ffa2a788d996174e0956aff9b9b72.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f4f4a5c7d050086cd21767c37e17670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe9f3099ed9429dc5b4e38a350e524a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262d7da8f17131eef23addd1854b170d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-问答题
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适中
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解题方法
【推荐1】已知函数
的单调增区间是
,且图形经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(1)求
的解析式;
(2)令函数
,若存在
,使得
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80027540415bd2b98c9be19e21b5f8d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6d804ef44bfc64f824b0ccef71765e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7180c785495e6a47affa7cded2bd13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e74877d3bb8d5b6a783f970ae37280b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d02b4ccd046c8a6e798b09afc2e2c8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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【推荐2】已知函数
,且
,
.
(1)若
,求
的解析式;
(2)若
是偶函数,求
的解析式;
(3)在(1)的条件下,证明
在区间
上单调递减.
(4)在(1)的条件下,若对
都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ef4ef276f01e0adc13d76484c66cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed670b1f668778c6243f3f7470ee7d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/241553167658572549705dda8cd7c207.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a783088120d67cc98936081e80fb7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)在(1)的条件下,证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f59a84526646f8d6f5fccb3796f654.png)
(4)在(1)的条件下,若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4abb29dd2bb3caa856ec6b4e76749c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c75c7392022ea49988cb19fdc7226e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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