解题方法
1 . 已知二次函数
的图象与x轴相交于
与
两点,则不等式
的解集是否确定?若确定,求其解集;若不确定,请给出一个条件,使其解集为确定的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c3a2f5b0702ea9fbb9dc8904579737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
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解题方法
2 . 已知函数
,若
,满足
,求
的取值范围,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcddeed10d8afb3434626a16bfb2143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d1b3ca09b6cce003cb4fb8e96768df9.png)
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3 . 讨论三次方程
的根的个数与分布情况.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7927448104f3cf8c7298ef21e84172ba.png)
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解题方法
4 . 已知
,且
,则指数函数
的图象与对数函数
的图象可能有几个交点?可以借助信息技术软件探索研究.
![](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/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82869dad28f771d088772a2c2b08b187.png)
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解题方法
5 . 函数
和
的图象如图所示.设两函数的图象交于点
,
,且
.
![](https://img.xkw.com/dksih/QBM/2021/11/23/2857587302408192/2859371576901632/STEM/4fa19df3-297d-4f83-8b77-d2bddaa92a8f.png?resizew=221)
(1)请指出图中曲线
,
分别对应的函数.
(2)结合函数图象,判断
,
,
,
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99eaeb2ab68a49074d623ffca072fed8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda16bdd2671a8e299a0d9c00504202d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://img.xkw.com/dksih/QBM/2021/11/23/2857587302408192/2859371576901632/STEM/4fa19df3-297d-4f83-8b77-d2bddaa92a8f.png?resizew=221)
(1)请指出图中曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)结合函数图象,判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0de67a5a63a0f53fe034bd24da39f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d31e89ab58383ef5fc8fb207b9f9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a16d85142832e121afa526eeac3d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7725960fb47ff971f04cc2fceae21244.png)
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2024高三下·全国·专题练习
解题方法
6 . 已知函数
.
的图象;
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a9a8d2026a4c4813da880aa52f2be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25b8eaf89a3bea7726b08f4925256bfc.png)
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19-20高一·全国·课后作业
7 . (1)方程
有一个正根和一个负根,求实数
的取值范围;
(2)方程
有一个根大于1,一个根小于1,求实数
的取值范围;
(3)
取何实数值时,关于
的方程
的两个不相等的实根都大于2?
(4)若关于
的方程
有两实根
,且
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c6e6e814bc68fd81eec75244751549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6907ccfe5f93af948ded73bcd8553900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05b3515387b6c50359ab456a0ba7712.png)
(4)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef08efba1c3e55f58572d1bf1e24eab9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5b159da139b50cde0d087f462aa4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96e97805f0853d6f994f0fad3b5aa05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2021高一·全国·专题练习
解题方法
8 . 已知函数y=f(x)是函数y=
的反函数.
(1)求y=f(x)的解析式;
(2)若x∈(0,+∞),试分别写出使不等式:
①
;
②
成立的自变量x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082b3321f1d781d1ba481e520001ce56.png)
(1)求y=f(x)的解析式;
(2)若x∈(0,+∞),试分别写出使不等式:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087c0874a8f9289604c0278bb03e4eac.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba3d6e2c588a9a3e345919f797d9e7b.png)
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解题方法
9 . 设
为定义在R上的偶函数,当
时,
;当
时,
,直线
与抛物线
的一个交点为
,如图所示.
![](https://img.xkw.com/dksih/QBM/2020/12/2/2605689836380160/2609916376227840/STEM/dc342c28-1965-4fc7-88f8-77b53f10513b.png?resizew=183)
(1)当
时,写出
的递增区间(不需要证明);
(2)补全
的图像,并根据图像写出不等式
的解集,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a9b769d70cb6f29e965c800921c8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572f286fb45b2757af63569ae0bc2e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a9b769d70cb6f29e965c800921c8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/572f286fb45b2757af63569ae0bc2e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2020/12/2/2605689836380160/2609916376227840/STEM/dc342c28-1965-4fc7-88f8-77b53f10513b.png?resizew=183)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)补全
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
您最近一年使用:0次
2020-12-08更新
|
158次组卷
|
2卷引用:广东省普宁市2020-2021学年高一上学期期中质量测评数学试题