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试卷年份:{{getYear('高三|高考模拟|广东|2015年')}}上传日期:2015-05-13题数:21
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题号:839418
题型:选择题
难易度:较难
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】对于三次函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image059.png)
,给出定义:设
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image060.png)
是函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image061.png)
的导数,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image062.png)
是
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image060.png)
的导数,若方程
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image063.png)
有实数解
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image064.png)
,则称点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image065.png)
为函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image061.png)
的“拐点”.某同学经过探究发现:任何一个三次函数都有“拐点”,任何一个三次函数都有对称中心,且“拐点”就是对称中心。设函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image066.png)
,则
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image067.png)
( )
题号:839419
题型:选择题
难易度:一般
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】多面体
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image051.png)
的底面
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image052.png)
矩形,其正(主)视图和侧(左)视图如图,其中正(主)视图为等腰梯形,侧(左)视图为等腰三角形,则该多面体的体积为 ( )
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image053.png)
题号:839420
题型:选择题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
题号:839421
题型:选择题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
题号:839422
题型:选择题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】下列函数中,既是奇函数又存在极值的函数是 ( )
题号:839423
题型:选择题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】已知
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image008.png)
为实数,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image009.png)
为虚数单位,若
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image010.png)
为实数,则
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image011.png)
( )
题号:839424
题型:选择题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】若集合
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image001.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image002.png)
,则 ( )
题号:4182657
题型:选择题
难易度:一般
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】若变量
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image022.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image023.png)
满足约束条件
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image024.png)
,则目标函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image025.png)
的最大值等于 ( )
题号:839391
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(几何证明选讲选做题)如图,PA与圆
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image001.png)
相切于A,PCB为圆
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image001.png)
的割线,并且不过圆心
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image001.png)
,已知
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image002.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image003.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image004.png)
,则圆
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image001.png)
的半径等于__________.
![](http://static.zujuan.xkw.com/Upload/2015-05/14/d5ab2d9a-d282-4103-bc4e-d40023ba88a5/paper.files/image005.png)
题号:839412
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(极坐标与参数方程选做题)若点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image113.png)
在以点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image114.png)
为焦点的抛物线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image115.png)
(
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image116.png)
为参数)上,则
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image117.png)
等于______.
题号:839413
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】将自然数按如图排列,其中处于从左到右第
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image101.png)
列从下到上第
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image102.png)
行的数记为
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image103.png)
,
如
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image104.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image105.png)
,则
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image106.png)
__________;
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image107.png)
__________.
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image108.png)
题号:839414
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】如图所示的程序框图,若输入
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image094.png)
,则输出的
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image095.png)
值为__________.
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image096.png)
题号:839415
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】某单位为了了解用电量
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image023.png)
(度)与当天平均气温
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image022.png)
(°C)之间的关系,随机统计了某4天的当天平均气温与用电量(如右表)。由数据运用最小二乘法得线性回归方程
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image088.png)
,则
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image089.png)
__________.
平均气温 (°C)
| 18
| 13
| 10
| -1
|
用电量 (度)
| 25
| 35
| 37
| 63
|
题号:839416
题型:填空题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】计算积分
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image086.png)
__________.
题号:4789739
题型:填空题
难易度:较易
日期:2017-08-09
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】设
![](http://static.zujuan.xkw.com/Upload/2017-08/09/4a59dbf8-173f-4edf-855c-c4b0be6b692e/paper.files/image094.png)
,若
![](http://static.zujuan.xkw.com/Upload/2017-08/09/4a59dbf8-173f-4edf-855c-c4b0be6b692e/paper.files/image095.png)
,则
![](http://static.zujuan.xkw.com/Upload/2017-08/09/4a59dbf8-173f-4edf-855c-c4b0be6b692e/paper.files/image096.png)
的最小值为__________.
题号:4839032
题型:填空题
难易度:容易
日期:2017-08-22
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】一个盒子内装有8张卡片,每张卡片上面写着1个数字,这8个数字各不相同,且奇数有3个,偶数有5个.每张卡片被取出的概率相等.
(Ⅰ)如果从盒子中一次随机取出2张卡片,并且将取出的2张卡片上的数字相加得到一个新数,求所得新数是偶数的概率;
(Ⅱ)现从盒子中一次随机取出1张卡片,每次取出的卡片都不放回盒子,若取出的卡片上写着的数是偶数则停止取出卡片,否则继续取出卡片.设取出了
![](http://static.zujuan.xkw.com/Upload/2017-08/22/6a1bd337-c4ad-4b90-991a-45282929e794/paper.files/image089.png)
次才停止取出卡片,求
![](http://static.zujuan.xkw.com/Upload/2017-08/22/6a1bd337-c4ad-4b90-991a-45282929e794/paper.files/image089.png)
的分布列和数学期望.
题号:839385
题型:解答题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(本小题满分14分)已知
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image332.png)
,函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image333.png)
=
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image334.png)
.
(1)记
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image132.png)
在区间
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image335.png)
上的最大值为
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image336.png)
,求
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image336.png)
的表达式;
(2)是否存在
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image337.png)
,使函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image338.png)
在区间
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image339.png)
内的图象上存在两点,在该两点处的切线互相垂直?若存在,求
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image337.png)
的取值范围;若不存在,请说明理由.
题号:839386
题型:解答题
难易度:困难
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(本小题满分14分)在直角坐标系
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image296.png)
中,曲线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image297.png)
上的点均在圆
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image298.png)
外,且对
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image297.png)
上任意一点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image189.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image189.png)
到直线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image299.png)
的距离等于该点与圆
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image300.png)
上点的距离的最小值.
(1)求曲线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image297.png)
的方程;
(2)设
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image301.png)
为圆
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image300.png)
外一点,过
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image177.png)
作圆
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image300.png)
的两条切线,分别与曲线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image297.png)
相交于点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image302.png)
和
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image303.png)
.证明:当
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image177.png)
在直线
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image304.png)
上运动时,四点
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image302.png)
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image305.png)
的纵坐标之积为定值.
题号:839387
题型:解答题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(本小题满分14分)已知数列
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image247.png)
的前
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image102.png)
项和为
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image248.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image249.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image250.png)
.
(1)求数列
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image247.png)
的通项公式;
(2)设数列
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image251.png)
的前
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image102.png)
项和为
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image252.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image253.png)
=
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image254.png)
+
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image255.png)
+
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image256.png)
+ +
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image257.png)
.试比较
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image253.png)
与
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image258.png)
的大小.
题号:839388
题型:解答题
难易度:较易
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】如图,在四棱锥
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image001.png)
中,底面
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image002.png)
为直角梯形,AD‖BC,
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image003.png)
,平面
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image004.png)
⊥底面
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image002.png)
,Q为AD的中点,M是棱PC上的点,PA=PD=AD=2,BC=1,CD=
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image005.png)
.
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image006.jpg)
(Ⅰ)求证:平面PQB⊥平面PAD;
(Ⅱ)若二面角M-BQ-C为
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image007.png)
,设PM=t
![](http://static.zujuan.xkw.com/Upload/2017-10/04/590413c2-2299-4a80-a25c-88abab8fdd49/paper.files/image008.png)
MC,试确定t的值.
题号:839390
题型:解答题
难易度:一般
日期:2015-05-13
来源:2015届广东省惠州市高三4月模拟理科数学试卷(带解析)
【题文】(本小题满分12分)已知函数
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image128.png)
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image129.png)
的最小正周期为
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image130.png)
,且
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image131.png)
.
(1)求
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image132.png)
的表达式;
(2)设
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image133.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image134.png)
,
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image135.png)
,求
![](http://static.zujuan.xkw.com/Upload/2015-05/13/9dc93b55-2737-4f5b-8ca5-e1610f7b08ec/paper.files/image136.png)
的值.