1 . 如图,在
中,
,点
为
的中点,点
为线段
垂直平分线上的一点,且
,四边形
为矩形,固定边
,在平面
内移动顶点
,使得
的内切圆始终与
切于线段
的中点,且
在直线
的同侧,在移动过程中,当
取得最小值时,点
到直线
的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddafc7d1c71c9c77e54f8d353117f858.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa79265fc0d0f10b2289408f6c322347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/826c728050e3378921442ace20269ef6.png)
![](https://img.xkw.com/dksih/QBM/2017/12/5/1832061285916672/1834260577263616/STEM/3cb76dfdc11c4a1e9f1147ed67bf06d4.png?resizew=175)
您最近一年使用:0次
2017-12-08更新
|
366次组卷
|
3卷引用:河北省邢台市2017-2018学年高二上学期第三次月考数学(理)试题
河北省邢台市2017-2018学年高二上学期第三次月考数学(理)试题(已下线)2017-2018学年第一学期期末复习备考之精准复习模拟题高三年级(理)人教版数学试题(C卷)湖北省新高考九师联盟2021届高三下学期2月质检巩固数学试题
名校
2 . 设
为数列
的前
项和,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4c5f2eabcfbcb67eeec6e4ca96fa58.png)
_ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1e856be82991b12503a77adc3c43eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3591a6fa3bbc87b646967ff838369d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4c5f2eabcfbcb67eeec6e4ca96fa58.png)
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2017-12-07更新
|
745次组卷
|
5卷引用:河北省武邑中学2018届高三上学期期中考试数学(文)试题
3 . 如图,在四棱锥
中,
底面
,
,底面
为矩形,
为线段
的中点,
,
,
,
与底面
所成角为
,则四棱锥
与三棱锥
的公共部分的体积为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f09ad78d4eccd1a9c9ccd3c4af79c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ea8a12e5f64b7f0694744fd455e235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4e569b55678b8b54bf23e3a680b0ff.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/25/0ce3ac3f-3efc-40ca-a298-8cf3d84e8358.png?resizew=180)
您最近一年使用:0次
2017-12-06更新
|
907次组卷
|
3卷引用:河北省武邑中学2018届高三上学期期中考试数学(理)试题
名校
4 . 已知函数
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/396a2dc4c4e1f95570942374291c682e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
5 . 已知
均为单位向量,且
,则
的最大值是____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38fe2c71e008615306cd00dd26ac34d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bb58883caf5c8ca1e94389839d294b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec31d4c53930bd8f29e6a9d043131ff.png)
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2017-11-22更新
|
1436次组卷
|
3卷引用:河北省石家庄市普通高中2018届高三10月份月考数学试题
名校
6 . 定义区间(a,b),[a,b),(a,b],[a,b]的长度均为
,多个区间并集的长度为各区间长度之和,例如,(1,2)
[3,5)的长度d=(2-1)+(5-3)=3. 用[x]表示不超过x的最大整数,记{x}=x-[x],其中
.设
,
,当
时,不等式
解集区间的长度为
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b01b58151c6b72a29b8d6ac948fbfbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321a57dd129e992d7834e91961987bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f1a3feca6218955446108ebad0a524.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0709309a951115c53cb9367e3ea395c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-11-18更新
|
414次组卷
|
3卷引用:河北省石家庄市第一中学2017-2018学年高一上学期期中考试数学试题
名校
7 . 已知圆
的弦
长为
,若线段
是圆
的直径,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f723e8e8c76632bab7b510e4abcf16.png)
____ ;若点
为圆
上的动点,则
的取值范围是_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f723e8e8c76632bab7b510e4abcf16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceb395c79b3b43604c3d4607046f79b7.png)
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2017-11-16更新
|
1126次组卷
|
3卷引用:河北省定州中学2018届高中毕业班上学期期中考试数学试题
河北省定州中学2018届高中毕业班上学期期中考试数学试题北京市大兴区2017届高三第一次综合练习数学理科试题(已下线)《2018届优生-百日闯关系列》数学专题 二 第三关 以平面向量数量积相关的求值问题为背景的填空题
名校
8 . 已知定圆
:
,点
是圆
所在平面内一定点,点
是圆
上的动点,若线段
的中垂线交直线
于点
,则点
的轨迹可能是:①椭圆;②双曲线;③拋物线;④圆;⑤直线;⑥一个点.其中所有可能的结果的序号为___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1d5fa66a3f158459aff58e80920d6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2017-11-15更新
|
809次组卷
|
6卷引用:河北省唐山市一中2017-2018学年上学期高二期中考试数学理科试题
名校
9 . 已知函数
在
上单调递减,那么实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/117d143e42133e5c838a22d8ac7f2ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2017-11-12更新
|
1006次组卷
|
2卷引用:河北省衡水市枣强中学2017-2018学年高一上学期期中考试数学试题
名校
10 . 下列命题:①集合
的子集个数有
个;②定义在
上的奇函数
必满足
;③
既不是奇函数又不是偶函数;④偶函数的图像一定与
轴相交;⑤
在
上是减函数,其中真命题的序号是 ______________ (把你认为正确的命题的序号都填上).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86a10eaa25bea651fea8bb8427c4a12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104375baf5cef5eb92cfc7cf13b80193.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41301dc538c09f57bf9aa08de24cbba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ede389b43c78417912542746d91d00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/862df674d5668eb2c8d67c889866463f.png)
您最近一年使用:0次
2017-10-22更新
|
1260次组卷
|
2卷引用:河北省邢台市2017-2018学年高一上学期第一次联考数学试题