1 . 对于在区间
上有意义的两个函数
与
,如果对任意的
,均有
,则称
与
在
上是接近的,否则称
与
在
上是非接近的.现在有两个函数
与
,现给定区间
.
(1)若
,判断
与
是否在给定区间上接近;
(2)若
与
在给定区间
上都有意义,求
的取值的集合
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(3)在(2)的条件下,是否存在
,使得
与
在给定区间
上是接近的;若存在,求
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5aff60e0e18dec5ddfa15bd1d91958e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc0597404b9110a0e25b644c9e51aabe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d220d623c5e1f0be00b173ba524dfba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a9ca12b588bb208de5e7da200c7272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9b91bab8bc82f119216cc743c8dbb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3129ddd2ea97fd010b9e0b644225da8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9b91bab8bc82f119216cc743c8dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45bcd8f6ede8cc2513ad41402f40086.png)
(3)在(2)的条件下,是否存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82f1ecfcbe90dca8dc8f3aa7ebaccfb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d9b91bab8bc82f119216cc743c8dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2 . 已知
是双曲线
的左右焦点,若双曲线右支上存在一点
与点
关于直线
对称,则该双曲线的离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74febecdeab2c76afebc30f82212fd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ab6b0c98e3e8512d26875ff5c8075c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d24b46fd9d845e4b6bb3c64d57a3239.png)
A.![]() | B.![]() | C.2 | D.![]() |
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13-14高二上·湖北孝感·期末
解题方法
3 . 设
,
是椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc35409c8054fe18431c70e6fea0334.png)
上的两点,已知向量
,
,若
且椭圆的离心率
,短轴长为2,
为坐标原点.
(1)求椭圆的方程;
(2)试问:
的面积是否为定值?如果是,请给予证明;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc35409c8054fe18431c70e6fea0334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c857ff98bd434fee7d5a8845258bca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43cc2a168e7645c9327c638a2278c21b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169488d6e49c88d14e9d23419c255568.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆的方程;
(2)试问:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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4 . 在平面直角坐标系中,已知两点
及
,动点Q到点A的距离为10,线段BQ的垂直平分线交AQ于点P.
(Ⅰ)求
的值;
(Ⅱ)求点
的轨迹方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cae50df1c0052f7721173c353f812fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d03fa28c117649b0fdfe17eed7b583.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4032a86e7c146d0c45d1e0222be0e981.png)
(Ⅱ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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5 . 设数列
的前项n和为
,若对于任意的正整数n都有
.
(1)设
,求证:数列
是等比数列,
(2)求出
的通项公式.
(3)求数列
的前n项和Tn.:学
![](https://img.xkw.com/dksih/QBM/2016/8/17/1572979371450368/1572979377487872/STEM/2021c3f261584b59b594eb13c0f5bf63.png)
![](https://img.xkw.com/dksih/QBM/2016/8/17/1572979371450368/1572979377487872/STEM/10930277dfaf4b69811375ce69944e67.png)
![](https://img.xkw.com/dksih/QBM/2016/8/17/1572979371450368/1572979377487872/STEM/2efb2722f8914e0a87835200da007211.png)
(1)设
![](https://img.xkw.com/dksih/QBM/2016/8/17/1572979371450368/1572979377487872/STEM/c251be9860f549a984c8fbf94339c09f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89d1f32c1605cfdb8e8855051b9f6ec.png)
(2)求出
![](https://img.xkw.com/dksih/QBM/2016/8/17/1572979371450368/1572979377487872/STEM/2021c3f261584b59b594eb13c0f5bf63.png)
(3)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09c23d5fc5b8c6a09854aa45bfc235.png)
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6 . 已知数列{an}的前n项和Sn满足
,
(1)求数列{an}的通项公式;
(2)求证:数列{an}中的任意三项不可能成等差数列;
(3)设
,Tn为{bn}的前n项和,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b884bccfa39262b6fa44450fb414b684.png)
(1)求数列{an}的通项公式;
(2)求证:数列{an}中的任意三项不可能成等差数列;
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f0e955e77004840aad912cb2fa0b79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92f04ae7e36a36e79421c52ee1fe60ab.png)
您最近一年使用:0次
2016-12-03更新
|
574次组卷
|
2卷引用:2014-2015学年湖北省安陆市一中高一下学期5月联考模拟数学试卷