名校
1 . 由抛物线
与直线
及
所围成图形的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0483173e47cf2f3fe427826c08d3f1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94fcf57347aec685a8fca271aba14eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
您最近一年使用:0次
名校
解题方法
2 . 一般地,设函数
在区间[a,b]上连续,用分点
将区间[a,b]分成
个小区间.每个小区间长度为
.在每个小区间
上任取一点
作和式
.如果
无限接近于0(亦即
)时,上述和式
无限趋于常数
,那么称该常数
为函数
在区间[a,b]上的定积分,记为
.当
时,定积分
的几何意义表示由曲线
,两条直线
与
轴所围成的曲边梯形的面积.如下图所示:
是区间[a,b]上的连续函数,并且
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f992bc847d76afe46f63c83dc32b85.png)
(1)求
;
(2)设函数
.
①若
恒成立,求实数
的取值范围;
②数列
满足
,利用定积分的几何意义,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2779faf49c4c603fdb73ef6f03cc8d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adc9f9006f4b099bcd85a3d3432da15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d74528a8974c188d81391d4f158c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/173ccb5cf09e9a104c7d9c969801463b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e827229de8424d07fe1f5d4dfb8b0dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f44febc79ae3b32724dcbaf76b835ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a107eb946e0fe41629c644b7628d5cba.png)
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1138c0cc8c4a956a413bd3300337e2b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e26a7c7b8d42a7752b6d3c508d8345.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436ff3cf58de28b55f7605675a47d818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/babadc15694ea4139b1bb919a7d49b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f992bc847d76afe46f63c83dc32b85.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a0452f7a65f8d088836241db2af124e.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6fd2f18661c82c289ffe94052dac8f7.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9da87f71c121cb80a1120f14aa525a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598da453256520641a243aba79e072d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c9d14bfa527b5ba538cc3960e9396f.png)
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名校
解题方法
3 . 阅读知识卡片,结合所学知识完成以下问题:
知识卡片1:
一般地,如果两数
在区间
上的图象连续不断,用分点
将区间
等分成
个小区间,在每个小区间
上任取一点
(
,2,…,n),作和式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13820d7479810174b76da70f2b0c91a.png)
(其中
为小区间长度),当
时,上述和式无限接近某个常数,这个常数叫做函数
在区间
上的定积分,记作
,即
.这里,
与
分别叫做积分下限与积分上限,区间
叫做积分区间,函数
叫做被积函数,x叫做积分变量,
叫做被积式.从几何上看,如果在区间
上函数
的图象连续不断且恒有
,那么定积分
表示由直线
,
,
和曲线
所围成的区域(称为曲边梯形)的面积.
知识卡片2:
一般地,如果
在区间
上的图象连续不断,并且
,那么
.这个结论叫做微积分基本定理,又叫做牛顿——莱布尼茨公式.例如,如图所示,对于函数
(
),从几何上看,定积分
的值为由直线
,
,
和曲线
所围成的区域即曲边梯形
的面积,根据微积分基本定理可得
.
①
;
②
;
③
;
④
.
(2)已知
,计算:
①
;
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8be82da06bf4bad8efa5c65a4d960a2.png)
(3)当
,
时,有如下表达式:
.计算:
知识卡片1:
一般地,如果两数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2779faf49c4c603fdb73ef6f03cc8d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d74528a8974c188d81391d4f158c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96c9975b7cb327da8634aabab7856095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13820d7479810174b76da70f2b0c91a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb09a0fb843fbc6959ab5688771ee01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b037afdaa0872d5004fe3e8206ee89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19893fdb67307d35a9115ef4f3f1202a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4471a3b99ea6b431271b76b7931cf272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0112f1dbb9abb6bbffc3ccfb77ba03.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/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5f852626c9a09019c20fba7b388183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4471a3b99ea6b431271b76b7931cf272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b334dafda377c3db77647c8cf1e95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
知识卡片2:
一般地,如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4dd421af6cde8dad1ef435eb12cc45a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71da6f8d70a273a75779e1aa818d4f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e712d5093491bf63ab4cdd34e8ca44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/644ba16341e356b57ea153e840555290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b334dafda377c3db77647c8cf1e95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7df955fc17e92fd86302f8c34664a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe83f1ae7e5f05d8bed6bf6f42db0e7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e16dc5c9406c6cdadbca9136ef97b99.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc6bfbb31a1766fea0bf95473044d34b.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdb735861115bfe3412c93538c4a522.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea107a985b40ed680a43dfb1fb9c2535.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dfd1660244935cb37ca57a08a26b05b.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e58d66635ee79693d107c8f3c49c5a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed11655d89fb2e5363377fc38d53d7c.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8be82da06bf4bad8efa5c65a4d960a2.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71842069f1fda57351db2de2e23a3262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2079e9798470edc75b66126cf06da150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bdc90b519006d41102a40a47a9fd87.png)
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名校
4 . 一般地,设函数
在区间
上连续,用分点
将区间
分成
个小区间,每个小区间长度为
,在每个小区间
上任取一点
,作和式
.如果
无限接近于
(亦即
)时,上述和式
无限趋近于常数
,那么称该常数
为函数
在区间
上的定积分,记为
.当
时,定积分
的几何意义表示由曲线
,两直线
与
轴所围成的曲边梯形的面积.如果
是区间
上的连续函数,并且
,那么
.
(1)求
;
(2)设函数
.
①若
恒成立,求实数
的取值范围;
②数列
满足
,利用定积分几何意义,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2779faf49c4c603fdb73ef6f03cc8d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9909c1172f1e48d86dd38c8c9728a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d74528a8974c188d81391d4f158c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3b6ed0cf8753da31759fcdec5e2f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e827229de8424d07fe1f5d4dfb8b0dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e39890697236d28d4c81e05c255fed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a107eb946e0fe41629c644b7628d5cba.png)
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8930c962e3b094e1ee2a99c8cc44cead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024c4cff71b59cd710d9e69618ed0428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436ff3cf58de28b55f7605675a47d818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4dd421af6cde8dad1ef435eb12cc45a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d462ee178d59547f72567d59d8a6d8c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1641f83d00194762e3e5332d2620aed9.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df83a09286eae3c3d4c674065ce07bf8.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f016825fcb10e4819eb3c8af9d5841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598da453256520641a243aba79e072d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c9d14bfa527b5ba538cc3960e9396f.png)
您最近一年使用:0次
2024-05-02更新
|
91次组卷
|
2卷引用:福建省福州市九县(区、市)一中2023-2024学年高二下学期4月期中联考数学试题
解题方法
5 . 一般地,设函数
在区间
上连续,用分点
将区间
分成
个小区间,每个小区间长度为
,在每个小区间
上任取一点
,作和式
.如果
无限接近于0(亦即
)时,上述和式
无限趋近于常数
,那么称该常数
为函数
在区间
上的定积分,记为
.当
时,定积分
的几何意义表示由曲线
,两直线
与
轴所围成的曲边梯形的面积.如果
是区间
上的连续函数,并且
,那么
.
(1)求
;
(2)设函数
.
①若
恒成立,求实数
的取值范围;
②数列
满足
,利用定积分几何意义,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2779faf49c4c603fdb73ef6f03cc8d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d62698894cd2008bc718645dc5615e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058b6a24dd8207a5bb15af23b536fbf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d80ab9d17c90844401100376fa2713d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2edc4a53872c30616bca5f3f7ee67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1268e217016ff7e12b9bc51341c4cde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a107eb946e0fe41629c644b7628d5cba.png)
![](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/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8930c962e3b094e1ee2a99c8cc44cead.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4eab9145ec5e13b0ae21c135a5b625.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436ff3cf58de28b55f7605675a47d818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d4d758bac9a7272c1d40a5ea4176c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d5365888545b29d3850a5eca1b0e54.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb480d935f37cfe76dcb6dcb25a5fb3.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0216d4ec1601bfbc0c642a78491c02.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a48eebe55c30519af8dbc50512a3f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49afef24cbe3b97b62488510ef5168b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c9d14bfa527b5ba538cc3960e9396f.png)
您最近一年使用:0次
2023高二上·全国·专题练习
6 . 当
时,有如下表达式:
两边同时积分得:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73210ec548d8922e339a385324511bd.png)
从而得到如下等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881fc0d964d3b397b89896fe0a84abb4.png)
请根据以上材料所蕴含的数学思想方法,计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eea5192d525da5fc832bfbc53c12ed5.png)
___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13fc055203348fd22f42b2f052d124a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5a2577df463de40c15576ec4b8c7847.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73210ec548d8922e339a385324511bd.png)
从而得到如下等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881fc0d964d3b397b89896fe0a84abb4.png)
请根据以上材料所蕴含的数学思想方法,计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eea5192d525da5fc832bfbc53c12ed5.png)
您最近一年使用:0次
名校
7 .
的值( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51596b906714e188d8951b4c996f8204.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 设
,
,
,则a,b,c的大小关系( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f1a6eda93b388b862794f11e9c43e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026c07f2eed1d61f59121c4ad9815d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f73308cb4d8b2932beef6d1fcdfec8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 计算
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aaf73e93f8e34a9c9fbd6870336abe4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
10 . 由曲线
与x轴及
所围成的图形绕x轴旋转一周后形成的几何体的体积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
A.2π | B.![]() | C.π | D.![]() |
您最近一年使用:0次