名校
1 . 17世纪,法国数学家马林·梅森在欧几里得、费马等人研究的基础上,对
(
为素数)型的数作了大量的研算,他在著作《物理数学随感》中断言:在
的素数中,当
,3,5,7,13,17,19,31,67,127,257时,
是素数,其它都是合数.除了
和
两个数被后人证明不是素数外,其余都已被证实.人们为了纪念梅森在
型素数研究中所做的开创性工作,就把
型的素数称为“梅森素数”,记为
.几个年来,人类仅发现51个梅森素数,由于这种素数珍奇而迷人,因此被人们答为“数海明珠”.已知第7个梅森素数
,第8个梅森素数
,则
约等于(参考数据:
)( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e9a7f85d7c3dac0c7bb7ec2dd64952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ba17b59a116513159db245f1c6d95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acff98078cdd32804d8f1c4efbe2ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e9a7f85d7c3dac0c7bb7ec2dd64952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb279735edf82ac8e752afb75b7bf254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda3e08795c1ce2970f5e8743c700dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e9a7f85d7c3dac0c7bb7ec2dd64952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e9a7f85d7c3dac0c7bb7ec2dd64952.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5b103e029a381dc68ba5bacfd492cbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa934bbf969b2093d582c75c529d6e53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d847078e05bef28fbd2e85f37d6d120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f3c9f2c83165537b05ec39e431ba02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/210da5653b0cf98863ff54b341eb7019.png)
A.17.1 | B.8.4 | C.6.6 | D.3.6 |
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2023-08-11更新
|
872次组卷
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5卷引用:福建省三明市2023届高三三模数学试题
福建省三明市2023届高三三模数学试题(已下线)专题4.3 对数【七大题型】-举一反三系列(已下线)4.3 对数运算(精讲)-《一隅三反》浙江省杭州绿城育华学校2023-2024学年高一上学期期末考试数学试题(已下线)专题21 指数、对数、幂函数小题
2 . 在平面直角坐标系
中,直线
的参数方程为
(
为参数,
为
的倾斜角),以原点
为极点,
轴正半轴为极轴,建立极坐标系,曲线
的极坐标方程为
,三条直线
,
,
与曲线
分别交于不同于极点的三点
,
,
.
(1)求证:
;
(2)直线
过
,
两点,求
与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f2beb91f10d2d8f2aa0dcc3f5cd1598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37befaec6ba81de784a13eec3173d30b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7f61f8aff4f209ab171072ccec7746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46418b9fd1116beb8e3ab3cac7c99234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa793287708b46c77bca87fb14c6e0b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d195583dc13b2ed73a1e3d0d6451720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55fe25b4fd31fb3b5f32878aebaecec.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caad7f8af78d4e98554576e8481d042f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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3 . 在数列
中,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c8e85c1c6bb889363c03c9bec6634d.png)
(1)求证:数列
是等差数列,并求
的通项公式;
(2)求
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c8e85c1c6bb889363c03c9bec6634d.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93112bdb48d862644b9021677b89b055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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2017-05-27更新
|
849次组卷
|
2卷引用:福建省泉州市2017届高三高考考前适应性模拟(二)理数试题
4 . 已知函数
(
).
![](https://img.xkw.com/dksih/QBM/2015/3/26/1572038754500608/1572038760390656/STEM/940fa17ad998421b9f3c00fd6122f135.png)
(1)若
为函数
的极值点,求
的值;
(2)若
,
已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71187e41a7278c6f1893852944bb782.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
,若直线
、
及直线
与函数
的图象所围成的封闭图形如阴影部分所示,求阴影面积
关于
的函数
的最小值
;
证明不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417346f9bcf07d0b586cb458ece0ed3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fde71807463dbdfd8fce1655a5a9f.png)
![](https://img.xkw.com/dksih/QBM/2015/3/26/1572038754500608/1572038760390656/STEM/940fa17ad998421b9f3c00fd6122f135.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1b9ff5619ecf65c4eeca63c87d6041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb6f96a7e0bf32d3741828a0f26e5ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90be39878f5360922840416cdc39bb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71187e41a7278c6f1893852944bb782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b53b86bd516400d6fa7dabb3603f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d4b99f920ce922c4709077a6662446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b334dafda377c3db77647c8cf1e95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008e80e33ba7b182a6d82862fadc8009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90614651ce628b6f8ff7351880e43ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c722ddbf96280443378c3580a88bc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcc6fe891d40c093c7ca340a054cee4.png)
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2012·福建福州·一模
5 . .(本小题满分l 4分)
如图,在边长为4的菱形ABCD中,∠DAB=60°.点E、F分别在边CD、CB上,点E与点C、D不重合,EF⊥AC,EF∩AC=O.沿EF将△CEF翻折到△PEF的位置,使平面PEF⊥平面ABFED.
(Ⅰ)求证:BD⊥平面POA;
(Ⅱ)当PB取得最小值时,请解答以下问题:
(i)求四棱锥P-BDEF的体积;
(ii)若点Q满足
=λ
(λ >0),试探究:直线OQ与平面PBD所成角的大小是否一定大于
?并说明理由.
如图,在边长为4的菱形ABCD中,∠DAB=60°.点E、F分别在边CD、CB上,点E与点C、D不重合,EF⊥AC,EF∩AC=O.沿EF将△CEF翻折到△PEF的位置,使平面PEF⊥平面ABFED.
(Ⅰ)求证:BD⊥平面POA;
(Ⅱ)当PB取得最小值时,请解答以下问题:
(i)求四棱锥P-BDEF的体积;
(ii)若点Q满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62f982dcc65613094acbaccb722d5e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117ac1041a20ddcd379f5aa10737c15f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aa42b56b1c92689a080b58cb603a642.png)
![](https://img.xkw.com/dksih/QBM/2012/3/21/1570815144337408/1570815149957120/STEM/2690a75071214485b0b3fe8d0be2b562.png)
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