设函数
(
为实数).
(1)当
时,若函数
为定义在
上的奇函数,且在
时,
,求函数
的解析式;
(2)当
时,求关于
的方程
在实数集
上的解.
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/64f07328cadb49a799344ff1665562da.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/1d92dedd27a94964958b39fa5c5b5383.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/748ef5d1d1524434a4257f808045eb9a.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/f0d8d2772c034efd82d1d219ff399e71.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/da7d75bebb984d3d878698b41d169130.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/63e54c7d787d42798fa7f4118ed7cced.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/2b7f347406f84a03b10d02e205f5ebc4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/f0d8d2772c034efd82d1d219ff399e71.png)
(2)当
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/4db5468c28874a66883c6d53334ae29b.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/1a585ecf035042db8e3e5199ed6b5baf.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/3bcd5091743d4b2db72907262254512f.png)
![](https://img.xkw.com/dksih/QBM/2016/11/21/1573163669700608/1573163676000256/STEM/da7d75bebb984d3d878698b41d169130.png)
更新时间:2016-12-05 01:12:36
|
相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】已知奇函数
的定义域为
,其中
为指数函数且
的反函数过点
.
(1)求函数
的解析式;
(2)判断函数
的单调性,并用函数单调性定义证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1043ae7c5663c05d34a4d8678b4b91da.png)
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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【推荐2】函数
为偶函数,当
时,
.
(1)当
时,求
的解析式;
(2)设函数
在
上的最大值为
,求
的表达式;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
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(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab90f84a9b6ec1334ce6fc12495ec218.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
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名校
【推荐2】数学运算是指在明晰运算对象的基础上,依据运算法则解决数学问题的素养.因为运算,数的威力无限;没有运算,数就只是一个符号,对数运算与指数运算是两类重要的运算.
(1)对数的运算性质降低了运算的级别,简化了运算,在数学发展史上是伟大的成就对数适算性质的推导有很多方法请同学们根据所学知识推导如下的对数运算性质:如果
,且
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(2)因为
,所以
的位数为4(一个自然数效位的个数,叫做位数).请你运用所学过的对数运算的知识,判断
的位数.(注
)
(3)2017年5月23日至27日,围棋世界冠军柯洁与DeepMind公司开发的程序“AlphaGo”进行三局人机对弈,以复杂的围棋来测试人工智能,围棋复杂度的上限约为
,而根据有关资料,可观测宇宙中普通物质的原子总数的和为
,甲乙两个同学都估算了
的近似值,甲认为是
,乙认为是
,现有一种定义:若实数
,
满足
,则称
比
接近
,请你判断哪个同学的近似值更接近
,并说明理由.
(1)对数的运算性质降低了运算的级别,简化了运算,在数学发展史上是伟大的成就对数适算性质的推导有很多方法请同学们根据所学知识推导如下的对数运算性质:如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
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(2)因为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/debc5f7846c70bdfb5911af22b83558f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3008d7758cef3054fc1ddfb1c8129bf.png)
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(3)2017年5月23日至27日,围棋世界冠军柯洁与DeepMind公司开发的程序“AlphaGo”进行三局人机对弈,以复杂的围棋来测试人工智能,围棋复杂度的上限约为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f610f3ed73c02ddc0fd21b34d12ee2.png)
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适中
(0.65)
解题方法
【推荐1】设实数,
,
.
(1)求
;
(2)求不等式
的解集;
(3)若存在
,使得
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/027e41c3991aa6d981957f244153a812.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4346648ca91b95652ab2122d1a44c49.png)
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620c01667e84280795d80097499e103d.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fd423a80d5b6fea8753fa1813cfbcc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0f2c5504947cb93a136a807554abdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0abb7656d20c6214769608cf7d27915.png)
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【推荐3】已知
(
)
(1)讨论该函数的奇偶性;
(2)当该函数为偶函数时,记
,若方程
在
上有实根,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4604c1711480d52f884b6fb756f3bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)讨论该函数的奇偶性;
(2)当该函数为偶函数时,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93fd2af3a6ca7da19974359a018a0a28.png)
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