1 . 在三棱柱
中,
,
,且
平面
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d74b1d0480790400a9223e4437afdba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7dc14ef100b26679193fb93f3a8b5c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f214481e6b23307a37940f6dd0313d30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4e7552a39c412d882766dbcd7eeb69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 已知向量
,
,
,若
共面,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317d779a75636d13e22c7a2da2a1faac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65bda748f1164d6891ed75334d3244de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6285b36675aed337017bb6864504b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e12e95f703ad30ab9a3d38376830989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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3 . 已知三棱锥
,空间内一点
满足
,则三棱锥
与
的体积之比为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f9de695c560aeff95fdde7d0b4476ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d90f940f5693b22ddf2e7c761887d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
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2024-04-07更新
|
751次组卷
|
4卷引用:山东省齐鲁名校联盟2023-2024学年高三第七次联考数学试题
名校
4 . 在三棱锥
中,
在线段
上,满足
是平面
内任意一点,
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656a93925561a68ac02e7352c933085c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f98d6d60d31af127291c3d22a7aa5b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
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2023-11-25更新
|
539次组卷
|
5卷引用:山东省枣庄市滕州市2023-2024学年高二上学期期末数学试题
山东省枣庄市滕州市2023-2024学年高二上学期期末数学试题四川省成都市树德中学2023-2024学年高二上学期期中考试数学试题四川省内江市第二中学2023-2024学年高二上学期12月月考数学试题(已下线)专题01 空间向量与立体几何(1)(已下线)第3章 空间向量及其应用(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)
名校
5 .
,
,
,若
共面,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff62fa204244ba460b3039ec6145c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/befac0c16763f92292f4d2dc340f7ca3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6516dec9e66f90ea4c84c9626b7991c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae951e0bb5a2a406f1572fc1e4964265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
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2023-11-25更新
|
308次组卷
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2卷引用:山东省普高大联考2023-2024学年高二上学期11月期中联合质量测评数学试卷
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6 . 在平面
中,
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f76d330b9bcbf2209764baeec50a67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2023-10-17更新
|
294次组卷
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3卷引用:山东学情2023-2024学年高二上学期10月质量检测数学试题
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7 . 已知
,
,
,若
,
,
,
四点共面,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e21b53b95fdd0cd49dd852c0a53fb6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1843479fa600e5e793c4d2fdb65d2885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0edfd5b428ae4be6e985b08c3890de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
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2023-10-14更新
|
754次组卷
|
8卷引用:山东省德州市实验中学2023-2024学年高二上学期期中数学试题
山东省德州市实验中学2023-2024学年高二上学期期中数学试题安徽省涡阳县第三中学2023-2024学年高二上学期10月月考数学试题湖北省宜昌市宜都市第一中学2023-2024学年高二上学期期中数学试题福建省厦门市新店中学2023-2024学年高二上学期期中考试数学试题浙江省绍兴市春晖中学2023-2024学年高二上学期期中数学试卷(已下线)2023-2024学年高二上学期期中数学模拟试卷(原卷版)(已下线)第3章 空间向量及其应用(知识归纳+题型突破)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)吉林省通化市梅河口市第五中学2023-2024学年高二上学期第二次月考数学试题
8 . 已知
,
,
,若
,
,
共面,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42b1258013724efb6decb16d63ad0445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc79166ece52b1f1ff5ce5139ba29646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c19751d64ed175aacef97aa3b903e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a0b19e69be46452425916a0fcb49c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
您最近一年使用:0次
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9 . 手工课上,老师给同学们提供了一个如图所示的木质正四棱锥模型
,底边和侧棱长均为4,则该正四棱锥的高为__________ ;过点
作一个平面进行切割,分别交
于点
、
、
,得到四棱锥
,若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad6965419a1071ff0de916c836ea537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/042dd94d956b294c889202cc9d0721db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b0fc5388cbacc5f9d2dd34d7343f41e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460c4ed432a046e83f54703168fc1694.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/1/57c08986-54de-4d64-be3d-dd897809be5f.png?resizew=156)
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10 . 已知空间四点
,
,
,
共面,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40cb141eaf6c8146304d0bf6dc9bd379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51198b9cce15e8b507733dccbde0b264.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c6780cbeb5faaf594c904666038fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd4d4c12b815d8ded9c449e6dddfddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
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2023-09-29更新
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483次组卷
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3卷引用:山东省泰安新泰市第一中学(实验部)2023-2024学年高二上学期第一次阶段性测试数学试题