名校
1 . 在直角坐标系
中,曲线
的参数方程为
(
为参数).在以坐标原点为极点,
轴正半轴为极轴的极坐标系中,直线
的极坐标方程为
,其中
.
(1)求
的极坐标方程;
(2)若
与
交于不同两点
,
,且
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4041691cac3c3c99f380c21d716a9b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f5d2e8186f0173d7862b1d39fb3dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65b6c42393fae47c51101713167ff71.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/c29a6b219ce34d1785ca1d40ab40685e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4492942fc9eda70f818ef4b784e6f0.png)
您最近一年使用:0次
2018-04-26更新
|
690次组卷
|
3卷引用:贵州省凯里市第一中学2018届高三下学期《黄金卷》第三套模拟考试数学(文)试题
名校
2 . 选修4—4:极坐标与参数方程
在平面直角坐标系
中,将曲线
(
为参数) 上任意一点
经过伸缩变换
后得到曲线
的图形.以坐标原点
为极点,x轴的非负半轴为极轴,取相同的单位长度建立极坐标系,已知直线
.
(Ⅰ)求曲线
和直线
的普通方程;
(Ⅱ)点P为曲线
上的任意一点,求点P到直线
的距离的最大值及取得最大值时点P的坐标.
在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e96b0dabd12cac642df82d3337a7f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e237f2341245e1154db324aef9fb0174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db35e6d74e083e2cf5e33b063650f5c.png)
(Ⅰ)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)点P为曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2018-04-08更新
|
1536次组卷
|
5卷引用:贵州省黔东南州2018届高三下学期第二次模拟考试数学(文)试题
3 . 【选修4—4:坐标系与参数方程】
已知曲线
的极坐标方程为
,以极点为坐标原点,极轴为
轴正半轴建立
平面直角坐标系,直线
的参数方程为
(
为参数)
(1)把曲线
的极坐标方程化为直角坐标方程,把直线
的参数方程化为普通方程;
(2)求直线
被曲线
截得的线段
的长.
已知曲线
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/bad4d09ef68d4ac88219499b26b8451f.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/0221c9f9ccdd435091057dec902af883.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/5f2e836997394dbeaefdbc59b566b014.png)
平面直角坐标系,直线
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/afca043a648a4a2aab31512522ed1397.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/f182bb057e6c4c9ba89ee4f92da1c830.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/cb1cea0785944c2381848081a773a44d.png)
(1)把曲线
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/bad4d09ef68d4ac88219499b26b8451f.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/afca043a648a4a2aab31512522ed1397.png)
(2)求直线
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/afca043a648a4a2aab31512522ed1397.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/bad4d09ef68d4ac88219499b26b8451f.png)
![](https://img.xkw.com/dksih/QBM/2015/3/4/1571990034972672/1571990041067520/STEM/28a70b3dff704902a9d6258d187b6de3.png)
您最近一年使用:0次
名校
4 . 选修4-4:坐标系与参数方程
已知直线
的参数方程为
(其中
为参数,
为常数),以原点为极点,
轴的非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
,直线
与曲线
交于点
两点.
(1)若
,求实数
的值;
(2)若
,点
坐标为
,求
的值.
已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdd61be8545a0e47c19128d894558e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e9a69431ed673b50842b98f5ee95ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/063f4f4ce1d9822e9d5144ca0fc83979.png)
您最近一年使用:0次
2018-03-09更新
|
967次组卷
|
3卷引用:贵州省凯里市第一中学2018届高三下学期开学考试数学(理)试题
5 . 在直角坐标系
中,点
的坐标为
,直线
的参数方程为
(
为参数).以坐标原点
为极点,以
轴的非负半轴为极轴,选择相同的单位长度建立极坐标系,圆
极坐标方程为
.
(Ⅰ)当
时,求直线
的普通方程和圆
的直角坐标方程;
(Ⅱ)直线
与圆
的交点为
、
,证明:
是与
无关的定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6554ac3dff4a59833e407db887f6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c3d8bb05abc1bf7a26d10f16934bc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f917a2022014d9c19c29eeac84c74e2f.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e2c8d466ab8eb5ecd38060b53bbe8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/559d66fd8b309fd440ce9bda78a579c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2018-03-08更新
|
392次组卷
|
3卷引用:贵州省黔东南州2018届高三第一次模拟考试数学(理)试题
名校
6 . 在平面角坐标系
中,以坐标原点
为极点,
轴的正半轴为极轴建立极坐标系,已知曲线
的极坐标方程为
,将曲线
向左平移
个单位长度得到曲线
.
(1)求曲线
的参数方程;
(2)已知
为曲线
上的动点,
两点的极坐标分别为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925b34a1e7a48f450d883f9a0197e5c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f947d715033ff4b7688ba5b79f050f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/363560ce2953da6dbc49c319dee36080.png)
您最近一年使用:0次
2018-01-19更新
|
1766次组卷
|
14卷引用:贵州省黔东南州黎平县黎平三中2019-2020学年高二下学期期末考试数学(文)试题
贵州省黔东南州黎平县黎平三中2019-2020学年高二下学期期末考试数学(文)试题贵州省黔东南州黎平县黎平三中2019-2020学年高二下学期期末考试数学(理)试题山西省太原十二中2018届高三上学期1月月考数学(文)试卷山西省太原十二中2018届高三上学期1月月考数学(理)试卷【市级联考】河南省濮阳市2019届高三5月模拟考试数学(理)试题【市级联考】河南省濮阳市2019届高三5月模拟考试数学(文)试题四川省泸县泸州市第四中学2019-2020学年高三上学期期末考试数学(文)试题四川省泸县泸州市第四中学2019-2020学年高三上学期期末考试数学(理)试题2020届高三1月(考点13)(文科)-《新题速递·数学》2020届高三1月(考点13-14)(理科)-《新题速递·数学》.安徽省阜阳市太和中学2019-2020学年高二下学期期末数学(理)试题安徽省阜阳市太和中学2019-2020学年高二下学期期末数学(文)试题(已下线)专题22 坐标系与参数方程-2020年高考数学(文)母题题源解密(全国Ⅰ专版)(已下线)专题22 坐标系与参数方程-2020年高考数学(理)母题题源解密(全国Ⅰ专版)
7 . 以平面直角坐标系
的原点为极点,
轴正半轴为极轴且取相同的单位长度建立极坐标系.已知点
的参数方程为
(
为参数),点
在曲线
上.
(1)求在平面直角坐标系
中点
的轨迹方程和曲线
的普通方程;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c134665d96ef145b7c45f36a942ecb07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466f34d911674039dc6b4e2b4a7fb607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f87a09397dac6d0c2f5c737e8fda561.png)
(1)求在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
您最近一年使用:0次
解题方法
8 . 已知直线
的参数方程为
(
为参数),在以坐标原点
为极点,
轴正半轴为极轴的极坐标系中,曲线
的极坐标方程为
.
(1)求直线
的普通方程和曲线
的直角坐标方程(化为标准方程);
(2)设直线
与曲线
交于
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd8a0eca9cea8562ff0f7d881007e8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7a3e9748df4bcf1d82441a0ba467e2.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6557ab9119c7dbf7a59c0a6aeb531c6.png)
您最近一年使用:0次
2017-09-17更新
|
1198次组卷
|
6卷引用:贵州省黔东南州2021届高三上学期第二次月考数学(文)试题
名校
9 . 选修4-4:坐标系与参数方程
已知直线
的参数方程:
(
为参数),椭圆
的参数方程为:
(
为参数),且直线
交曲线
于
两点.
(1)将椭圆
的参数方程化为普通方程,并求其离心率;
(2)已知
,求当直线
的倾斜角
时,
的值.
已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029b8b0c53800985a55d22fcda82ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/430094e73d39a73980ad36359d0e54e0.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)将椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f449cadb49859b80c31ef1f68bfe81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d57678b93f1dcb18d4cbb33ff70bce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad973d4423d02524d6ee8347c051de.png)
您最近一年使用:0次
2017-08-30更新
|
570次组卷
|
2卷引用:贵州省凯里市第一中学2016-2017学年高二下学期期末考试数学(文)试题
10 . 已知曲线
,直线
(
为参数)
(1)写出曲线
的参数方程,直线
的普通方程;
(2)过曲线
上任意一点
作与
夹角为
的直线,交
于点
,求
的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fad97bd130bc5543f3ffd4cba90b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7a4ca134a5b42baff0ad139c8ff2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)过曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c030b25575d683af91c06e6a3e4f463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d063ec7f9dbeba72fabf4437f9400e07.png)
您最近一年使用:0次
2017-08-06更新
|
76次组卷
|
2卷引用:贵州黔东南州2017届高三高考第一次模拟考试文科数学试题