已知f(x)=x3+ax2+bx+c,在x=1与x=-2时,都取得极值.
⑴求a,b的值;
⑵若x
[-3,2]都有f(x)>
恒成立,求c的取值范围.
⑴求a,b的值;
⑵若x
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d1aed687e8aab91ca960162ca660256.png)
10-11高二下·湖南邵阳·单元测试 查看更多[1]
(已下线)2010年湖南省洞口四中下学期高二单元数学试题
更新时间:2016-11-30 20:31:10
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相似题推荐
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
的图象在点
处的切线方程是
.
(1)求函数
的解析式;
(2)设函数
,若
的极值存在,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b35c4e5fae6e39d21eb4e2e841c0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0fdfcd9eeee9879f8d8f69716c34cc.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/299ea20ca39f58f56dd041a57e464a91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知函数
.
(1)若
有两个极值点,求实数
的取值范围;
(2)当
时,求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f65789b23ae50529feae2127726fc24.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/9de696903eb03c57d7ef7595ab4215ac.png)
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适中
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名校
解题方法
【推荐1】已知函数
.
(1)求
在
上的最大值和最小值;
(2)求证:当
时,函数
的图象在函数
图象下方.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62f5c1671e6b71dd50fe1063b70a435.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d930828ec7fe2d285a6b1499c18f259.png)
(2)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e807ac80be8d5f01f7d9d1b8907d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1189a22cc89137f4b1b0a2a593a2a4ab.png)
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【推荐2】某市政府欲在如图所示的矩形
的非农业用地中规划出一个休闲娱乐公园(如图中阴影部分),形状为直角梯形
(线段
和
为两条底边),已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
,
,
,其中曲线
是以
为顶点、
为对称轴的抛物线的一部分.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/f05b4b55-4628-4de7-8f68-20d4a3a2168a.png?resizew=110)
(1)求曲线
与
所围成区域的面积;
(2)求该公园的最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7517f54a1ccb77add90ade02b3a84719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90c780dac29ff8b7df5881d3b33abab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42af8cdea9c5269c17aebb086afdd136.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07160f14b3b453bebb64cb2bf96dc85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f171567256d0e2b0a88e327d5006af9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5fe30c67ac20cd4e8b9cc2d0d420a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/6/f05b4b55-4628-4de7-8f68-20d4a3a2168a.png?resizew=110)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39ee40b5a17a31195e83ec5f8e0b819.png)
(2)求该公园的最大面积.
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适中
(0.65)
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解题方法
【推荐3】已知函数
.
(1)若
是函数
的极值点,
①求
在
处切线方程;
②求
在区间
上的最值;
(2)若
,
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f26ecbcf4e87695921d44a4ae6fa7e6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d29c5c266a6d834a244c1f50c8f9848c.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6330851e9f077f09083ae16c4dcc9056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa18838a13fda4e45612c32cdf98b71.png)
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)求函数
的单调递增区间;
(2)任取
,函数
对任意
,恒有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3ae25a60f251508809d6d28dfe103e.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)任取
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faca302797566f1d8a60309a1b164e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f495b4429072a78c9eee70c4bd447f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1f93ffcffe8c8dedd5f40b2a75e74e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】设函数
,
.
(1)当
时,求函数
的单调区间;
(2)如果对于任意的
,
,都有
成立,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c55b80adf7e2dca3215b9973ee5d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98c699778c1f92e2d975ac67c104d3fe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)如果对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1774be56515d14a57b4a79d74df5387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ddfe7d3ec160156380c1a673b913da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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