2024高三下·全国·专题练习
1 . 英国数学家泰勒发现了如下公式:
,
,其中
.这些公式被编入计算工具,计算工具计算足够多的项就可以确保显示值的精确性.
(1)用前三项计算
;
(2)已知
,
,
,试证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e001efee18e05afab241c12334d98cd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba15a427babacf319deb9c4dd8d58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92307718a00deef60672fc21c4281a01.png)
(1)用前三项计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb0821260d845231f860baeabd68eeb.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa20a3f02e6430d94120e9df5eaaa70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695cf64b357d24bc88ea669ad8f1de57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aabd3c4a5fd9278fea6546a52a7a6653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35a815e123ef5a7adc448a9c8aff37b7.png)
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2 . 设
是正实数数列.
(1)若
收敛,求证:存在严格递增的无界正实数数列
满足
收敛.
(2)若
收敛,是否一定存在严格递增的正整数数列
,满足
收敛,且
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7376941fa463c63b1d4d4ea866b78c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccecde965d7557d5ee35dea8ae7164a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c988a3683540149b687486af0ed3a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120dcd9c3adc5b08ab9d84f228cc4b90.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ad99ac2f9cbe69281dcdc7d4195d8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fba58d775c69de6d132c58581d614792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246e5563a2f86de45879b21393d814f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c69eef9b8e90f6a153b87738f759bcf.png)
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3 . 如图,已知平面上有点A与直线l,AB平行于x轴,AB与l的夹角
.M为l上除B外任一点,求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75f0f73ef73170c99098b7bddd21bf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f646399565a11f03478237d7309d7067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75f0f73ef73170c99098b7bddd21bf9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/8/7401cd87-5979-4611-afc3-3c431fd52ec6.png?resizew=167)
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2023高三·全国·专题练习
4 . 设
,且
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b906b9144c2bfe43d64dc37e99393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574b3c0cdd4e1c6f3c77d43dc7e0603f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c3ce507f4078cab6ecb6374063c4afc.png)
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2023高三·全国·专题练习
5 . (1)存在小于
的正数
且
,求证:
.
(2)推广:存在小于
的正数
且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83590c4a7ea5636843dd4b60c67cb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948f5295ac0cefde2d80ce5515dc8f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f77808891cc3cdea4a1b6918e3e8e32.png)
(2)推广:存在小于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83590c4a7ea5636843dd4b60c67cb40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948f5295ac0cefde2d80ce5515dc8f0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc8c47bf55ba1129fd68c4fd98a1abd.png)
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2023高三·全国·专题练习
6 . 已知
,
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f57f35fbbb5d288691dda630a44961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd24c686fbaaa68705d654b880481ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6dd7a6d37fbf01752c5a20fa6a26e0.png)
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7 . 证明不等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1279e14499b7c24c7700a40ab03bda.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff1279e14499b7c24c7700a40ab03bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab03556c333ab0b55fe86c937b2a5763.png)
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8 . 证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8cf87587aac69274373a005577b2f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8cf87587aac69274373a005577b2f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/979afc68fc79cb164915847cf44068bf.png)
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2023高三·全国·专题练习
9 . 设
在
上连续,在
内可导,且
.求证:存在
,使
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f34a4b21efd7ec65dc62482eb690b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bde30d393f29073eea9faec6ba8606e.png)
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2023高三·全国·专题练习
10 . 已知函数
.
(1)若
有三个零点,求
的取值范围;
(2)设
的三个零点分别为
,求证:
;
(3)设
的三个零点分别为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509a331989b695e7331543cc7b42d2db.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964faebde5cf5cba603cc22ccb7544ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddb9fbb1fa3f0ddd0e71b4c953091d8a.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964faebde5cf5cba603cc22ccb7544ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21439cc23bab0db1a8c199316e2f809d.png)
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