名校
1 . 已知圆
,直线
,圆上恰好有两个点到直线
的距离等于1.则符合条件的实数
可以为______ .(只需写出一个满足条件的实数即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5568579340b4a3daf3f01b6dbc4048a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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名校
2 . 数列
满足
,前12项和为158,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5491164a81565a32285b5b652672486b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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解题方法
3 . 已知点
,
,平面
的一个法向量为
,则点
到平面
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d560631b4b30e9b4cf3277c7f7cce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a6c602f76424165c64202b5b4ae593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168a3c6a4dfac9982cc77ad502cd2064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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解题方法
4 . 设
表示等差数列
的前
项和,已知
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0675050bc7377c6056b0e62b2570fc1.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eabb3e5ff574b8cd7d0bd32d6f5b5f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0675050bc7377c6056b0e62b2570fc1.png)
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2024-03-06更新
|
279次组卷
|
2卷引用:福建省厦门双十中学2023-2024学年高二下学期开学考试数学试题
解题方法
5 . 设A,B是一个随机试验中的两个事件,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992a45dcac87eeb949b409602a95917a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a009718e6ca1bf47b34b4a30efaea90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974a4095bdc1de269dc72dbe0fd26945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd58e4cf38fd29911592dbb8dfb8782.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992a45dcac87eeb949b409602a95917a.png)
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解题方法
6 . 已知数列
的前
项和为
,满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60d42c1aa96a4aa471f4e5ad8f366b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
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2024-03-01更新
|
538次组卷
|
2卷引用:福建省莆田市第二中学2023-2024学年高二下学期返校考试数学试卷
名校
7 . 一个扇形的弧长为
,面积为
,则此扇形的圆心角为________ .(用弧度制表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997b5842f3d4eae1989debee9ae41b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce6d0745f252a581226d7150c016ee3.png)
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2024-03-01更新
|
495次组卷
|
2卷引用:福建省福州市福清第一中学2023-2024学年高一下学期开学适应性练习数学试题
名校
解题方法
8 . 在边长为
的正方形铁皮的四角切去边长相等的小正方形,再把它的边沿虚线折起,做成一个无盖的方底铁皮箱.当箱底边长为__________
时,箱子容积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd6f4250ca6b1b9bce234a01f00d44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
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2024-02-27更新
|
203次组卷
|
2卷引用:福建省莆田第一中学2023-2024学年高二下学期期初考试数学试卷
解题方法
9 . 已知
的展开式中
的系数为240,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ea329661afa36ff508b86efc97c6546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d800f03de80068a1172beac3a2c75587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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