名校
1 . 定义函数
,设区间
的长度为
,则不等式
解集区间的长度总和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad35753860ae3c07ee847f90556c484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
A.5 | B.6 | C.![]() | D.![]() |
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2 . 在
中,
分别是角
的对边,若
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df55bd2a041a6f6efae513c5829e47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d083925a25a003c2b136b040fdd5909.png)
A.2018 | B.1 | C.0 | D.2019 |
您最近一年使用:0次
2020-04-05更新
|
2079次组卷
|
3卷引用:2020届安徽省马鞍山市第二中学高三上学期期中数学(理)试题
2020届安徽省马鞍山市第二中学高三上学期期中数学(理)试题江西省宁冈中学2020-2021学年高二上学期第一次段考数学(理)试题(已下线)专题4-2 正余弦定理与解三角形小题归类1-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)
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3 . 已知圆
和两点
,
.若圆
上存在点
,使得
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e58f6e9caeea7843ca858b263418254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a37e40ad003daaea0595b4051815e0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361610314e9bb5580993bd17d66b629c.png)
![](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/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.8 | B.7 | C.6 | D.5 |
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2019-06-18更新
|
2884次组卷
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4卷引用:安徽省马鞍山市第二中学郑蒲港分校2020-2021学年高二下学期入学摸底测试理科数学试题
名校
4 . 已知中心在原点的椭圆C的左焦点恰好为圆F:
的圆心,有两顶点恰好是圆F与y轴的交点.若椭圆C上恰好存在两点关于直线y=x+t对称,则实数t的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2025bac7b08ec9f206cfce02bdd7ec.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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5 . 在
中,
点
在线段
上,且
,
,则
面积的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b943749daf7d28215f5318c415481da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8ed2f1b67128a5a68abd2eeeef0231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2019-04-17更新
|
1560次组卷
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5卷引用:【市级联考】安徽省马鞍山市2019年高中毕业班第二次教学质量监测理科数学试题
2014·吉林长春·三模
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解题方法
6 . 已知抛物线
和
的焦点分别为
,
,
,
,交于
,
两点(
为坐标原点),且
.
(1)求抛物线
的方程;
(2)过点
的直线交
,下半部分于点
,交
的左半部分于点
,点
的坐标为
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a3bffe545af2299cf999d44767206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e393b3e36390b1354950e2cfccc4967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f53582205ac7cacda48d0e9e720b2c.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b334e2eaa7e8fb79cef8208b56ee4f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ee4fee4e31dde06ecafe8def22af42.png)
您最近一年使用:0次
2016-12-02更新
|
2810次组卷
|
8卷引用:安徽马马鞍山市2017-2018学年高二上学期期末教学质量检测数学(理)试题