1 . 一个正整数n称为具有“
因数积性质”:若n的所有正因数的乘积等于
,则不超过400的正整数中具有“
因数积性质”的数的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4815b8b7203fb465809b395153ea3340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411a315870ed3e6d0e8ea885f1a04bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4815b8b7203fb465809b395153ea3340.png)
A.55 | B.50 | C.51 | D.前三个答案都不对 |
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2 . 记
表示集合A中的元素个数,
.若
,则称集合A有“性质T”.
(1)设
为等比数列且各项为正有理数,证明集合A有“性质T”.
(2)已知集合A,B均有“性质T”,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4978089eb165d2241a35275396794d06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181891d7f4b616b13ced728f4e2528b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b996fe0e5156e59dd71b5e64ded28829.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/922f1456841b9203279ed22138c46428.png)
(2)已知集合A,B均有“性质T”,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080b2789c3db78a2e6419eca85543091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e46f31e6dd0ef18885c3756005b371.png)
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3 . 已知罗尔中值定理:若函数
满足:①
在
上连续;②
在
上可异;③
,则存在
,使得
.
(1)试证明拉格朗日中值定理:若函数
满足:①
在
们上连续;②
在
上可导,则存在
,使得
.
(2)设
的定义域与值域均为
且
在其定义域上连续且可导.求证:对任意正整数n,存在互不相同的
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f94345694d4215284c41f87146795ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8166cc061d434d02bccbcf153cc6b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be227e1da97582fd99cb7cec416982af.png)
(1)试证明拉格朗日中值定理:若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8166cc061d434d02bccbcf153cc6b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7853db400c62dc688f01aa38be72acd2.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a61eaad9616cce2705245cc7ffc2636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05eca773cea4fc8732050ab44063aa3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5932903a7ddb5fe53eff8249c6cd3619.png)
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4 . 已知O为坐标原点,
,且
,其中
且
.
(1)求
的最大值.
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/845f50eef55f37a5ace61e3da3289fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3baf46d3bd47a3d3faa6310dc914a289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d574c3deb26d7779e31e5f4143630a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/474648ff0ed0d8bf6ba7b8c76e3008e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c222fd41716ec5db060d23391fcf1f3.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae870f3ff97410a3a6b29286ed277cc6.png)
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解题方法
5 . 在一个
的方格表中填入8个1,使得任意每行以及每列都有2个1,则不同的填法数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb9d60d456560e9bac66c8b20c49bb1.png)
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6 . 黑板上写有1,2,…,2017这2017个数,每次操作任意擦去其中的某三数a,b,c,写上
除以11的余数,则黑板上最后剩下一个数可能为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae24688d4c45aad43e9af0b7bbfda6b.png)
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7 . 把实数
写成十进制小数,则a的十分位、百分位和千分位上的数字之和等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38beaaf12d0a428a68baec7a066dce43.png)
A.0 | B.9 | C.27 | D.前三个答案都不对 |
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解题方法
8 . 设
为非负常数,m为实数.若对任意的非负实数
均有
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99257ce3c9724bea4f98b5357185c275.png)
A.当![]() |
B.当![]() ![]() |
C.当![]() |
D.当![]() |
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9 . 设p,q,r是质数,且
是整数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed5c39e2fc71a2b17e2bb568eaee9825.png)
A.p,q,r中有两个数相等 | B.p,q,r中有一个等于2 |
C.p,q ,r中有一个等于3 | D.![]() |
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10 . 在菱形
中,
,延长
至点P,
与
相交于点E,
与
相交于点Q,
的外接圆交
于另一点F,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd17a66a2af938c89e46f22e4d893b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f517953a21c2a45fd8465072c44bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
A.B,F,E,C四点共圆 | B.D,F,C,P四点共圆 |
C.B,C,D,Q四点共圆 | D.D,F,E,Q四点共圆 |
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