已知函数
.
(1)求
的定义域;
(2)判断
的奇偶性,并证明;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2d1867282f5cd284216f46bc23b2e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
更新时间:2024-01-24 15:42:08
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】对任意
,给定区间
,设函数
表示实数
与
所属的给定区间内唯一整数之差的绝对值.
(1)当
时,求出
的解析式;
时,写出绝对值符号表示的
解析式;
(2)求
,
,判断函数
的奇偶性,并证明你的结论;
(3)当
时,求方程
的实根.(要求说明理由,
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4035cfb18025858632d43831447c3b0.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679c9edadb198dae2983e88f9ee58beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a61ec093e119992a403df0497f0743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a783b1e8eea93e4ce94024b9964f8817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a75c953af67bd94470f596a0bf63804.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d2a706da87c1775d9e89799e45b4df.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae004a2d795c35808d909790822100a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1cfff73c67b6a37b40fdec9e2ee8ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2432b81810c40ed8e4eb36372581b231.png)
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|
适中
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解题方法
【推荐2】已知函数
.
(1)证明函数
在
上是增函数;
(2)一般地,设函数
的定义域为
,如果对于任意的
,都有
,并且
,那么称函数
是奇函数.证明函数
是奇函数;
(3)解不等式
.(参考公式:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda16bdd2671a8e299a0d9c00504202d.png)
(1)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda16bdd2671a8e299a0d9c00504202d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)一般地,设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbb0f552978813eaeb54d68c8c9c13f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1db6c94b94afc372212a81cc1f4dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda16bdd2671a8e299a0d9c00504202d.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3783a63669f1ab73ee82a11a56880ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2b054c81868032ddb0927b766936e2.png)
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数
=
,k∈R.
(1)判断
的奇偶性并说明理由;
(2)如果当x∈[0,2]时,
的最大值是6,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dc4f3dadf75cbbf44182d8d3e5375ac.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)如果当x∈[0,2]时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数f(x)=loga(x+2),g(x)=loga(2﹣x)(a>0,a≠1).
(1)求函数f(x)﹣g(x)的定义域;
(2)判断f(x)﹣g(x)的奇偶性并证明;
(3)求f(x)﹣g(x)>0中x取值范围,
(1)求函数f(x)﹣g(x)的定义域;
(2)判断f(x)﹣g(x)的奇偶性并证明;
(3)求f(x)﹣g(x)>0中x取值范围,
您最近一年使用:0次
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适中
(0.65)
解题方法
【推荐2】求下列函数的定义域:
(1)
;
(2)
;
(3)
(
,
).
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f9bd29c0a2649e8076817e380b8aaa4.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7140cb05b299d6d06af927345b3750ff.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7859fe22557f03c85d74eb06f08eae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
您最近一年使用:0次
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适中
(0.65)
名校
【推荐3】已知函数
(
)对
有
,且函数
的定义域为
.
(1)求
的解析式;
(2)若
,求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9ebaae5d4ba51ab1013f1df46ce47b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d974a379028d53120006847c3cba9cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424843950ee17f6f18b5c181c1f6ee34.png)
您最近一年使用:0次
解答题-问答题
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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
,且对任意
,当
时,
恒成立,则称
为
上的
函数.
(1)若定义在
上的函数
为减函数,判断
是否为
上的
函数,并说明理由;
(2)若
为
上的
函数,且
,求不等式
的解集;
(3)若
为
上的
函数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e132a45de8ed534195ffb18920b6db3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbc1bc250c8a6523a1be394ff48d4a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee6ac9863b9f0be7bd5a49a4075468d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(1)若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae55a418b4997978c4f0638c1b9f3a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec3a80297256a8fa9e579a4fb7fbfa88.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0140f12a6b008fa7042ae682d85f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.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
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适中
(0.65)
名校
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad355e6b1a91ade310a363d84655a135.png)
(1)设函数
是定义在
上的奇函数,当
时,
,求函数
的解析式;
(2)已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7500561cf6c3fa53a019ea2095a8e7ba.png)
①求集合
;
②当
时,函数
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad355e6b1a91ade310a363d84655a135.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89eea593c79973e97f6f3cdf621cdfc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339b85cca0100adc23472c143f9a5a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70333079f6699dd59d4887f06988f219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a98f219c18debbd8b617f117c09534b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89eea593c79973e97f6f3cdf621cdfc5.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7500561cf6c3fa53a019ea2095a8e7ba.png)
①求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc4c15b1d62420f42732db3b626ce3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16330c5e3eb2eb8a50a9e35a0601222f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17ca1e04c68f59bddc675411a0ea2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
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(0.65)
解题方法
【推荐3】已知函数
.
(1)解关于
的不等式
;
(2)设函数
,若
的图像关于
轴对称,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce427e97019745d570dd2728027fba5.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae0938503264ace966a65130a3e95d24.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ebecd406e9f5e0ebdf2947d3fa4a11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次