解题方法
1 . 已知函数
是奇函数.
(1)求a的值;
(2)用定义证明
在
上为减函数;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f53e3dea3da3e843fe96a7ccb4edb50.png)
(1)求a的值;
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
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2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b553753a7482fc027c17e5fc349cec2.png)
(1)画出函数图象
(2)结合图象写出函数的单调增区间和的单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b553753a7482fc027c17e5fc349cec2.png)
(1)画出函数图象
(2)结合图象写出函数的单调增区间和的单调减区间.
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3 . 求解下列问题:
(1)求值:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c9076fac61b9969923d136e266b1b0.png)
(2)求值:
(1)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c9076fac61b9969923d136e266b1b0.png)
(2)求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f70846a440ca41fd3d634971eae85.png)
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4 . 已知不等式:
.
(1)若
,求不等式解集;
(2)若
,求不等式解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802da74f1efc6eaae19268029c961ccd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
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5 . 某校要建造一个容积为8
,深为2 m的长方体无盖水池,池底和池壁的造价分别为240元/
和160元/
,那么水池的最低总造价为多少元?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eab9bcb68861b73f12a65eb9e94700d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c901bcdfa58f0c68ad0161b0bab269.png)
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名校
6 . 解下列不等式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe60550fd78a515850d1b8618c857c9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/717378f5face5028b798c83b7df34cbc.png)
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2023-02-02更新
|
870次组卷
|
5卷引用:河南省南阳市内乡县第三高级中学2021-2022学年高一上学期10月月考数学试题
解题方法
7 . 函数
是定义在实数集
上的奇函数,当
时,
.
(1)判断函数
在
的单调性,并给出证明;
(2)若对任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5072269438173f1963ba44e9b66e32e.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe86cace140f2c3588ab115837bbfc9e.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb735ff555cd2b35737d371baf35a0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292d5c6b51eeabfd25ec98a62d7f5abc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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8 . 已知全集
,集合
为偶数
,集合
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64d0e19b26c07de37c071f56ba482cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60a21d2ed0d7c1b54698689daf1a87c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0a4fee862dca0ecab8950997c69dcf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db265773aaa855915ed0b8d3f66a70a.png)
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9 . 已知不等式
(
).
(1)解这个关于
的不等式;
(2)若当
时不等式成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5e1808da1ff3a1da492a481f1166b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)解这个关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853e3c15d116fb61f236ab239c50b114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
10 . 求下列函数的值域:
(1)
;
(2)
;
(3)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07445723bcf1e14a56ce14ff152163c5.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749962102495b2ee188235d6619850e3.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4f57c43da0a5e046510201cf73537d.png)
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