适用年级:{{getGradeNameByProperty('高三|高考模拟|河北|2012年')}} 试卷类型:{{getTestPaperTypeName('高三|高考模拟|河北|2012年')}} 使用省份:{{getAreaName('高三|高考模拟|河北|2012年')}}
试卷年份:{{getYear('高三|高考模拟|河北|2012年')}}上传日期:2012-02-27题数:22
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题号:1095663
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】现有3张科技馆主馆票,2张儿童乐园票,现拿出三张票分给三名同学,有多少种分法?( )
题号:1095664
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image001.png)
的反函数为
![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image002.png)
,且有
![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image003.png)
,若
![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image004.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image005.png)
的最小值为( )
A.9 | B.![](http://static.zujuan.xkw.com/Upload/2012-08/29/8308d10f-ba62-4662-aaac-30d514ba2cf7/paper.files/image006.png) | C.4 | D.5 |
题号:1095665
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】设
![](http://static.zujuan.xkw.com/Upload/2012-08/30/b1f3dd52-09d9-478f-9331-e4a86ff5739c/paper.files/image001.png)
为坐标原点,
![](http://static.zujuan.xkw.com/Upload/2012-08/30/b1f3dd52-09d9-478f-9331-e4a86ff5739c/paper.files/image002.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-08/30/b1f3dd52-09d9-478f-9331-e4a86ff5739c/paper.files/image003.png)
满足
![](http://static.zujuan.xkw.com/Upload/2012-08/30/b1f3dd52-09d9-478f-9331-e4a86ff5739c/paper.files/image004.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/30/b1f3dd52-09d9-478f-9331-e4a86ff5739c/paper.files/image005.png)
的最大值是( )
题号:1095666
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
题号:1095667
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】设实数
![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image001.png)
为函数
![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image002.png)
的最大值,则
![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image003.png)
的展开式中
![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image004.png)
的系数是( )
A.192 | B.64 | C.![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image005.png) | D.![](http://static.zujuan.xkw.com/Upload/2012-09/05/8ee08c0f-4236-4c04-bedf-97c0d0014bf6/paper.files/image006.png) |
题号:1095668
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
题号:3477139
题型:选择题
难易度:容易
日期:2013-02-22
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知命题
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image022.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image023.png)
是
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image024.png)
的充分不必要条件;命题
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image025.png)
已
知
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image026.png)
是锐角三角形
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image027.png)
的三个内角,向量
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image028.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image029.png)
与
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image030.png)
的夹角是锐角,则( )
题号:3477140
题型:选择题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】若抛物线
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d16484b3-fd89-4e14-a9cd-604c3dd4c2a0/paper.files/image001.png)
的焦点与椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d16484b3-fd89-4e14-a9cd-604c3dd4c2a0/paper.files/image002.png)
的左焦点重合,则
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d16484b3-fd89-4e14-a9cd-604c3dd4c2a0/paper.files/image003.png)
的值为( )
A.4 | B.2 | C.![](http://static.zujuan.xkw.com/Upload/2012-08/30/d16484b3-fd89-4e14-a9cd-604c3dd4c2a0/paper.files/image004.png) | D.![](http://static.zujuan.xkw.com/Upload/2012-08/30/d16484b3-fd89-4e14-a9cd-604c3dd4c2a0/paper.files/image005.png) |
题号:3477141
题型:选择题
难易度:
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】复数
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image001.png)
( )
题号:3477142
题型:选择题
难易度:
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
题号:3477143
题型:选择题
难易度:
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】在底面为正方形的四棱锥
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image052.png)
中,侧棱
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image053.png)
垂直于底面
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image054.png)
,且
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image055.png)
,点
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image056.png)
为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image053.png)
的中点,则直线
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image057.png)
与平面
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image058.png)
所成角的正弦值是( )
题号:3477144
题型:选择题
难易度:
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知抛物线
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image074.png)
的准线与圆
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image075.png)
相切,则
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image031.png)
的值为
( )
A.![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image076.png) | B.1 | C.2 | D.4 |
题号:1095659
题型:填空题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】设椭圆
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image001.png)
与
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image002.png)
轴交于
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image003.png)
两点,两焦点将线段
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image004.png)
三等分,焦距为
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image005.png)
,椭圆上一点
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image006.png)
到左焦点的距离为
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image007.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/31/1650adc4-0175-4a86-9ff1-d81c55f2c146/paper.files/image008.png)
___________.
题号:1095660
题型:填空题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】在
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d54e09ec-34cc-4562-b1ec-65df87ffbbc5/paper.files/image001.png)
中,
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d54e09ec-34cc-4562-b1ec-65df87ffbbc5/paper.files/image002.png)
分别是角
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d54e09ec-34cc-4562-b1ec-65df87ffbbc5/paper.files/image003.png)
的对边,且
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d54e09ec-34cc-4562-b1ec-65df87ffbbc5/paper.files/image004.png)
,则
![](http://static.zujuan.xkw.com/Upload/2012-08/30/d54e09ec-34cc-4562-b1ec-65df87ffbbc5/paper.files/image005.png)
______.
题号:1095661
题型:填空题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】若关于
![](http://static.zujuan.xkw.com/Upload/2012-08/31/75825aea-6f02-44a9-8c0c-93efc14d1d0d/paper.files/image001.png)
的不等式
![](http://static.zujuan.xkw.com/Upload/2012-08/31/75825aea-6f02-44a9-8c0c-93efc14d1d0d/paper.files/image002.png)
至少有一个负数解,则
![](http://static.zujuan.xkw.com/Upload/2012-08/31/75825aea-6f02-44a9-8c0c-93efc14d1d0d/paper.files/image003.png)
的最小值为_______.
题号:1095662
题型:填空题
难易度:较易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知抛物线
![](http://static.zujuan.xkw.com/Upload/2012-08/30/ceb1bdeb-3942-4e54-8391-27c13411b29e/paper.files/image001.png)
的焦点与双曲线
![](http://static.zujuan.xkw.com/Upload/2012-08/30/ceb1bdeb-3942-4e54-8391-27c13411b29e/paper.files/image002.png)
的一个焦点重合,则以此抛物线的焦点为圆心,双曲线的离心率为半径的圆的方程是___________。
题号:1095654
题型:解答题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知双曲线
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image220.png)
的左顶点为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image221.png)
,右焦点为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image222.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image038.png)
为双曲线右支上一点。
(1)求
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image223.png)
的最小值;
(2)若直线
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image224.png)
为圆
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image225.png)
上动点
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image226.png)
处的切线,且与双曲线
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image227.png)
交于不同的两个点
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image089.png)
,证明
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image228.png)
为直角三角形。
题号:1095655
题型:解答题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image207.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image208.png)
上是增函数,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image209.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image210.png)
上为减函数.
(1)求
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image211.png)
的表达式;
(2)当
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image212.png)
时,若
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image213.png)
在
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image214.png)
内恒成立,求
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image104.png)
的取值范围.
题号:1095656
题型:解答题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】如图,四棱锥
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image129.png)
的底面是正方形,每条侧棱的长都是底面边长的
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image130.png)
倍,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image038.png)
为侧棱
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image131.png)
上的点。
(Ⅰ)求证:
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image132.png)
;
(Ⅱ)若
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image133.png)
平面
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image134.png)
,求二面角
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image135.png)
的大小;
(Ⅲ)在(Ⅱ)的条件下,侧棱
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image136.png)
上是否存在一点
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image137.png)
, 使得
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image138.png)
平面
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image134.png)
。若存在,求
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image139.png)
的值;若不存在,试说明理由。
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image140.png)
题号:1095657
题型:解答题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】某人投篮一次命中概率为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image076.png)
,共投篮7次。
(1)试问至多有1次命中的概率;
(2)试问出现命中次数为奇数的概率与命中次数为偶数的概率是否相等?请说明理由。
题号:1095658
题型:解答题
难易度:容易
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】已知函数
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image095.png)
(
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image096.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image097.png)
),且函数
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image098.png)
的最小正周期为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image099.png)
.
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image100.png)
(Ⅰ)求函数
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image098.png)
的解析式并求
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image098.png)
的最小值;
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image100.png)
(Ⅱ)在
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image083.png)
中,角A,B,C所对的边分别为
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image084.png)
,若
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image101.png)
=1,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image102.png)
,
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image100.png)
且
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image103.png)
,求边长
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image104.png)
.
题号:3477145
题型:解答题
难易度:
日期:2012-02-27
来源:2012届河北省衡水中学高三调研理科数学试卷(1)
【题文】设
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image196.png)
,令
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image197.png)
,又
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image198.png)
。
(1)求数列
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image047.png)
的通项公式;
(2)求数列
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image047.png)
的前
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image119.png)
项和
![](http://static.zujuan.xkw.com/Upload/2012-02/27/ed641b3c-4b7c-4a0a-a163-6be18a00f89d/paper.files/image199.png)
。