名校
1 . 已知函数
(
,常数
).
(1)当
时,求不等式
的解集;
(2)根据
的不同取值,判断函数
的奇偶性,并说明理由;
(3)若函数
在
上单调递减,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14a2156c6690b324f7929b3b3553970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e451f18c97bc90b2216351fd73bf00af.png)
(2)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-12-02更新
|
242次组卷
|
2卷引用:上海市进才中学2019-2020学年高一上学期期中数学试题
名校
2 . 若实数
、
满足:
,则下列叙述正确的是( )
![](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/eafd193a1172d0adae232b7890d4ceeb.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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名校
解题方法
3 . 已知x,y都是正数,且
.
(1)分别求x,y的取值范围;
(2)求
的最小值及此时x,y的取值;
(3)不等式
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04645353d91a5beb6d02c06bb62683a9.png)
(1)分别求x,y的取值范围;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1fc838e1477179b36ca7481ee2cc1e8.png)
(3)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fcebe10ae382d181636f14889c24f15.png)
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4 . 求解下列范围:
(1)已知
,
,试求
与
的取值范围.
(2)设
,
,若
,
,求
的取值范围.
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49eac34ff12056908d46614e5b0e5593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb9f0c64c37615af139e1bd5b8c3d311.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcb79c362bddb898f8a9d02a5f5d085.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a088056f18cf2ce9b7f902ea34c3ee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff8bfbc66415aba31d51c528207b788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3263d873d15640084eea58cb5171e33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
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名校
解题方法
5 . 设函数
.
(1)若当
时,
,当
时,
.求
的所有取值构成的集合;
(2)若
,
,当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53be61cd85ec86aabd164cae0265246b.png)
(1)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c6875d552e9fff3c7d655f3a59b166.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54eff1aaacb1ba98b5e379789f6d47a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770b121eb74100f5910fc1ac5ad45cbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24fb6244f7eb128adbe4515e88aa9e53.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86304c3e26200299a0480641525a283.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a039b83b7784132b820a32c9894a2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00150c8a3afc150959a67e4ae64ebdb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-10-28更新
|
317次组卷
|
2卷引用:湖南省长沙市湖南师大附中2020-2021学年高一上学期第一次大练习数学试题
名校
6 . 已知二次函数
和一次函数
,其中a,b,c满足
且
(
);
(1)求证:两函数的图像交于不同的两点A,B;
(2)求
的范围;
(3)求线段
在x轴上的射影
的长的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515a6ddd934c0cf6b19fed772b3835d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0e9d1ad9561d693958756ee8398218.png)
(1)求证:两函数的图像交于不同的两点A,B;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
(3)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
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2020-01-31更新
|
594次组卷
|
2卷引用:上海市上海外国语大学附属外国语学校2017-2018学年高一上学期10月月考数学试题
名校
解题方法
7 . 命题甲:关于
的不等式
的解集是空集.命题乙:指数函数
随着
增大而减小.
(1)若命题甲、命题乙中至少有一个真,求实数
的取值范围;
(2)当命题甲是假命题且命题乙为真命题时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01a13ec34f954d237f72aa56a4a5388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bece79fa8dae9f21557e485590bb602c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)若命题甲、命题乙中至少有一个真,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当命题甲是假命题且命题乙为真命题时,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853eca21bcd065961ddda3246b866120.png)
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8 . 不等式组
的解集为
,则a的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbc11b548b1ff75108c57aa10638079a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d39bac2b9f9e2e4a5b33cd4873cb146.png)
您最近一年使用:0次
名校
9 . 已知函数
,其中
,
,
.
(1)若
且
,设此函数图象与
轴的两个交点间的距离为
,求
的取值范围;
(2)若
且不等式
的解集为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.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/686b332872c51b433befe65fbe773380.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce613eaa5df46a50174085ef5d1087fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e56f4504e0f80fd031c8b5f41832e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a46e678bf9d2df5ad4c782b3dc22f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2a846407f36fa65678e95155bae1ae.png)
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2023-10-13更新
|
121次组卷
|
2卷引用:湖南省部分学校2023-2024学年高一上学期10月联考数学试题
10 . 若关于x的不等式
的解集为
或
,
(1)求a,b的值;
(2)实数a,b满足
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d184259a63a6289c5a94454e8d7017f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f275ac850b1201490876a3bf1c1eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2212ca63a0f4cac1086319559aa388.png)
(1)求a,b的值;
(2)实数a,b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d6a35c313016a5df0f30be1a3f85bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a0f87d293943730d47162b1233f6fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed5eb26f7e7ec1691e977fddaff9ef8.png)
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