1 . (1)求导函数
.
(2)求定积分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01974d041922cb667e503a94dc1acac3.png)
(2)求定积分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7655033ea2c7bfa0c9de1f348741a292.png)
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2021-09-02更新
|
256次组卷
|
2卷引用:江西省上饶市横峰中学2020-2021学年高二下学期期中考试数学(理)试题
2 . 我们要计算由抛物线
、
轴以及直线
所围成的曲边区域的面积
,可用
轴上的分点0、
、
、…、
、1将区间
分成
个小区间,从第二个小区间起,在每一个小区间上作一个小矩形,使得每个矩形的左上端点都在抛物线
上,这么矩形的高分别为
、
、…、
,矩形的底边长都是
,设所有这些矩形面积的总和为
,就有
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/58a58585-2072-4fd8-aa69-9740f5b39d6a.png?resizew=200)
(1)求
的表达式,并求出面积
;(可以利用公式
)
(2)利用上述方法,探求由函数
、
轴、
轴以及直线
和所围成的区域的面积
.(可以利用公式:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6a2eba56d4f2d1670b0256b8d86b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c350e626893ba12c028b6c8bc4ea8d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cc7040ad5dd0ebafac0e9f23bd54812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b176553f857ff6e6641d79c9e83be10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7d1d8923879a6fdaf839d87aafeff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adf343294853aef9035ed93efb09ec2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee6a2eba56d4f2d1670b0256b8d86b92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a12c3439a5339dd2ae4c91e52466f3c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/58a58585-2072-4fd8-aa69-9740f5b39d6a.png?resizew=200)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ee4f17114ccb24847c7228ae17ba8c.png)
(2)利用上述方法,探求由函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f2eff609c6043c2a89a6dd163fe2244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e28ccf6acba4afeb5983cc1bc575d13b.png)
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20-21高二·全国·单元测试
3 . 由定积分的性质和几何意义,求出下列各式的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203f1c9654642f78af74fd1d75d01651.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3665efe37af1376414e81462fc667a2.png)
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2019高二下·全国·专题练习
名校
4 . 计算下列定积分:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9622371ce1ba479752f981e851d0afbb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d52c0ecbde416e5278a14b46d7e9c321.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28edcb8a5b98eefa0d91b10a1190f1a7.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bd6612d57c21c14a51f5276257acde.png)
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5 . 求由曲线
与
所围的图形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffa05c3c869c56ef598dcdc638e4dff.png)
您最近一年使用:0次
6 . 求直线
与曲线
所围成的曲边梯形的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a73bf4dbcfe9653e9ec7fb2507349d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
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7 . 用定积分的几何意义求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33878ef3cc1b8460cef53731c1abb4a2.png)
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8 . 已知
,
,
,
,求:
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb632b20aa56b34140ad420a589785f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51500037af0a820476171ba8ac710000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d07638297e3231384ad901dd6ecfed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f77e97bf17cc35191b68a31939f33c.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183f6763b8771b1f1b481a9f354acebc.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221f4cdc2476806aa1b9ea5da3fbc7dc.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc245499912d848ae16a5d62a249ffd8.png)
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解题方法
9 . 利用定积分的几何意义,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e098804674d11a30fdb12df3e5b74e.png)
您最近一年使用:0次
2018-02-25更新
|
544次组卷
|
2卷引用:高中数学人教A版选修2-2 第一章 导数及其应用 1.5 定积分的概念 (4)
10 . 已知函数f(x)=
求f(x)在区间[-1,3π]上的定积分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ca757a1be2589eacc1faa90e21dac0.png)
您最近一年使用:0次
2018-02-25更新
|
527次组卷
|
2卷引用:高中数学人教A版选修2-2 第一章 导数及其应用 1.5 定积分的概念