1 . 如图,已知四棱锥
的底面
是菱形,
,
,
为
边的中点,点
在线段
上.
(1)证明:平面
平面
;
(2)若
,
平面
,求四棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b86db010859f7a243badec02946a4e24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62974d34de3a12418d6b700420afd1b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/59868dd8-42d1-4d26-b2ae-2b3f7840ce20.png?resizew=182)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8f3dd6c6f43d594d10735338e6a2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab456406b6ff366458e03c19d0a8356d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f793045bb9e659eaf55146bd6f50358.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7602c1b50d985f4b4a7d7028d1351777.png)
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6卷引用:2016届云南省昆明一中高三第六次考前强化文科数学试卷
2 . 若关于
的不等式
的解集为区间
,且
,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c9dd5c0ab57a4fccf58b1203515574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4776c85b79df196f606d3ebf3697fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/963f1900038cac5efb70ef22070b767f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:2016届云南省昆明市一中高三第六次考前强化理科数学试卷
3 . 正三棱柱ABC A1B1C1的底面边长为2,侧棱长为
,D为BC中点,则三棱锥A B1DC1的体积为
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572546834579456/1572546840567808/STEM/4183641303db4c65a1c86276fdf963df.png)
A.3 | B.![]() | C.1 | D.![]() |
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4卷引用:2015-2016学年云南省保山市腾冲六中高二上学期期末数学试卷
2015-2016学年云南省保山市腾冲六中高二上学期期末数学试卷2015-2016学年辽宁省葫芦岛一中高一下期初摸底数学试卷(已下线)专题8.2 空间几何体的表面积与体积(讲)-江苏版《2020年高考一轮复习讲练测》(已下线)测试卷11 空间几何体(B)-2021届高考数学一轮复习(文理通用)单元过关测试卷
4 . 点
到直线
的距离为__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca280ccbf4426a4e3837e03ac8791d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3732b0e4d40be0f6be43983aad9f6d21.png)
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2卷引用:2015-2016学年云南省蒙自一中高二上学期开学考试文科数学试卷
5 . 如图,三棱柱
中,
平面ABC,AB
BC , 点M , N分别为A1C1与A1B的中点.
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/f741be8c65e24efab9c1ccbb293ced53.png)
(Ⅰ)求证:MN
平面BCC1B1;
(Ⅱ)求证:平面A1BC
平面A1ABB1.
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/2a5db8f869634cd0a6f8caa33170aa26.png)
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/696f2ae6e75b4346bf799f1128a37042.png)
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/63804ed3693f4beb9f35ae1237437162.png)
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/f741be8c65e24efab9c1ccbb293ced53.png)
(Ⅰ)求证:MN
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/adb8aaf945be4c96a0521c8ef468b2cd.png)
(Ⅱ)求证:平面A1BC
![](https://img.xkw.com/dksih/QBM/2016/1/29/1572471708549120/1572471713939456/STEM/63804ed3693f4beb9f35ae1237437162.png)
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6 . 圆
的圆心到直线
的距离为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d2daae3eb6d0fd031d6a7ad1e9522.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3732b0e4d40be0f6be43983aad9f6d21.png)
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7 . 如图,在三棱锥
中,平面
平面
,
为等边三角形,
且
,
、
分别为
、
的中点;
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572467196272640/1572467202465792/STEM/d70de3bdae514f0fa9b2c01e2892a0b2.png)
(1)求证:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d97c32f6ee8b2990529d9c802dd7022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907a87ff2d57a639abb283a06ff88bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddd5b973941f488a3986b908ee56228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e198f91d52d3dfa1533df97fbedcd8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19bc7774144c164f7ebaeca54fa657e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4fce8e923062b9779553d6f282895b.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572467196272640/1572467202465792/STEM/d70de3bdae514f0fa9b2c01e2892a0b2.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06261a226359f921f6c104f77bc5bd00.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d97c32f6ee8b2990529d9c802dd7022.png)
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2卷引用:2015-2016学年云南省蒙自市蒙自一中高二10月月考理科数学试卷
名校
8 . 圆
关于原点
对称的圆的方程为_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96b4d8ef0708bf0c61549cbd2f3e0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b6a9ffffc0c461881b427c543924cd.png)
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10卷引用:2015-2016学年云南省蒙自市蒙自一中高二10月月考理科数学试卷
2015-2016学年云南省蒙自市蒙自一中高二10月月考理科数学试卷2015-2016学年云南省蒙自市蒙自一中高二10月月考文科数学试卷新课标人教A版高中数学必修二第四章第1节《圆的标准方程》专题练习山西省太原市第五中学2018-2019学年高二上学期12月月考数学(文)试题(已下线)【新教材精创】2.4.1+圆的标准方程+导学案-人教A版高中数学选择性必修第一册(已下线)【新教材精创】2.4.1+圆的标准方程+教学设计-人教A版高中数学选择性必修第一册(已下线)专题2.1 圆的方程-《讲亮点》2021-2022学年高二数学新教材同步配套讲练(苏教版2019选择性必修第一册)新疆维吾尔自治区巴音郭楞蒙古自治州和硕县高级中学2022-2023学年高二上学期期末考试数学试题2.4 圆的方程(已下线)2.4.1 圆的标准方程【第二课】“上好三节课,做好三套题“高中数学素养晋级之路
解题方法
9 . 如图,正方体
中,E为AB中点,F为正方形BCC1B1的中心.
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000320000/STEM/d04e0409-e531-4f3a-a17f-e4d76b1f0773.png?resizew=368)
(1)求直线EF与平面ABCD所成角的正切值;
(2)求异面直线A1C与EF所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://img.xkw.com/dksih/QBM/2016/1/27/1572466994380800/1572467000320000/STEM/d04e0409-e531-4f3a-a17f-e4d76b1f0773.png?resizew=368)
(1)求直线EF与平面ABCD所成角的正切值;
(2)求异面直线A1C与EF所成角的余弦值.
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4卷引用:2015-2016学年云南省昭通市云天化中学高二上12月月考理科数学卷
12-13高一下·福建泉州·期中
名校
解题方法
10 . 在棱长为2的正方体
中,设
是棱
的中点.
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/b261c2a114f64023a43604a8fe4bd7c3.png)
(1)求证:
;
(2)求证:
平面
;
(3)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8456cee87c4e22351affc28f3a73a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/b261c2a114f64023a43604a8fe4bd7c3.png)
(1)求证:
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/e8df690d015c428ea85917ae2effe863.png)
(2)求证:
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/53d0f90315494da8b660dbbb13817524.png)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/5e7657b5d6e2406a957594c9308d8a37.png)
(3)求三棱锥
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463120384000/1572463126601728/STEM/8a9694cfebb54860b9a6fa9a125e78b9.png)
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