已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9749b2cf32c9c15ebcbe585cfe424f17.png)
(1)若函数
在区间
上存在零点,求实数
的取值范围
(2)当
时,若对任意的
,总存在
,使
成立,求实数
的取值范围
(3)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
的值域为区间
,是否存在常数
,使区间
的长度为
?若存在,求出
的值;若不存在,请说明理由.
(注:区间
的长度为
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45b0f721e2a9e2a89734154ba4973b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9749b2cf32c9c15ebcbe585cfe424f17.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5a5e70f64f0933ae1e4ddec5fa2c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17641d15644d5fb2c79fd1016b21520f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29f5020d133f458912dc3da22b8127d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c76e839b5cdae2d2a269fae6f0cecad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b0507d73ad6e1fafcedfdf678478430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(注:区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be35b4d8f52e8f440297683c3178e22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701fce58a3087d253fd4fa948030eb50.png)
19-20高一上·浙江·期中 查看更多[1]
(已下线)【新东方】浙江省2019-2020学年高一上学期数学试题【JAQ】
更新时间:2020-10-12 20:46:02
|
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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
,且当
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(1)求
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(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebb9129f4b5b00e3088671a32c93e7a.png)
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8254a9fe09d5e3940ad8c1c1c62c105c.png)
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解题方法
【推荐2】已知函数
对任意的
都有
,且当
时,
.
(1)判断函数
的奇偶性;
(2)证明:函数
是定义域上的减函数;
(3)当
时,函数
是否有最值?如果有,求出最值;如果没有,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f41dbae6c8949fc33a77735c05928ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9c0b77c282c0b2cbb3dab9a7e225dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70333079f6699dd59d4887f06988f219.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc90a4915bf934d979d36505df2d7ce.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5138e260da0c66de38a4a8785bbb0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
【推荐1】已知集合
,函数
在区间
内有解时,实数a的取值范围记为集合B.
(1)若
,求集合B及
;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffadc55cbb3762c0e60a064e1ae49476.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20786b6870e2c974a6dc5941bb2ad84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9697d8d5762148aa5913855b768d672.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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(0.65)
名校
【推荐2】已知函数
是奇函数.
(1)求
的值;
(2)当
时,
①求函数
的值域;
②若
,有
恒成立,求实数
的取值范围;
(3)若函数
(
,且
)在
上有零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89db25a37be893b23774a0f77ba81b90.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca97e3aa8061c4d8e621c5598c69b13b.png)
①求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a20e6b1f01632210c5ac8d60c0cc026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428af7e987366870e6a0afb27d2bccf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efe5ee5dc6b8d4ae475e2646533be109.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/950fdd0fb407e00752a55f81e3e644c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-证明题
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【推荐1】已知函数
是定义域上的奇函数,且
.
(1)判断并用定义证明函数
在
上的单调性;
(2)设函数
,若
在
上有两个零点,求实数
的取值范围;
(3)设函数
,若对
,都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd044bbb73cbbbbc4c0d1da5463477a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aff2144d6e1b26db35e9d3309e615573.png)
(1)判断并用定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd1017814e9883c21b17e43703a7272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0557c1b1eb6b2a7d91f0ef7f9a52427d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fa2686060312ed2221ad9de62c260c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5af0b9aebc3254313dcab06eae3534ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】对于定义在R上的函数
,可以证明“点
是
的图像的一个对称中心”的充要条件是“
”.
(1)求函数
的图像的一个对称中心;
(2)函数
在R上是奇函数,求a、b满足的条件:并讨论在区间
上是否存在常数a,使得
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2de78b3148620cc740e52edb9a791c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fb5b286dea26800747e8575f992dc0.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7bc57a9ac3f82c3b8af4fe78e5c861b.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9b646e7865dd0fa40669eee033984c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
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【推荐3】已知
,其中
是常数,
.
(1)判断函数
的奇偶性,请说明理由;
(2)若对任意
,均有
,求所有满足条件的实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dd870f1f669420f3c8caf96faec7cc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963b11b722d4b7e8b5f048954166673f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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