1 . 平行六面体
中,化简
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325201ae19028c35da0ca7434f605f98.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 如图,平行六面体
的底面
是菱形,且
,
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/534094d1-58d0-4c46-bb1a-605096c4a9b2.png?resizew=183)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92105835f8075cb75dff244e908370b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f2a0a606abf89fbd04687717b366ed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/2/534094d1-58d0-4c46-bb1a-605096c4a9b2.png?resizew=183)
A.![]() | B.![]() ![]() ![]() |
C.![]() | D.点![]() ![]() ![]() |
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2023-12-02更新
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2卷引用:广西壮族自治区玉林市2023-2024学年高二上学期11月期中考试数学试题
3 . 如图所示,在平行六面体
中,E,F,H分别为
,
,DE的中点.若
,
,
,则向量
可用
表示为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/3d377752-2d75-4182-882d-3867d1af9121.png?resizew=207)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7ddbb49c644bf06ccbad885ba2c84a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adfcfa3dbc655af0f42d8773eb7710f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b10b969819d397711310c8dbb399ebc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c56152d5e3105a7f7b7557e9f9db1e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcebe191ce48d90068212301acadd02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af87d986d9c7d7aba0aabe9b7d092402.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df89534c497c7871cd76e8e99262835.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ef909ce476a7724bea5bdd8d7b7ee06.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/21/3d377752-2d75-4182-882d-3867d1af9121.png?resizew=207)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-10-17更新
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8卷引用:广西桂林市荔浦县荔城中学2022-2023学年高二上学期期末考试数学试题
20-21高二·全国·课后作业
名校
4 . 点
是矩形
所在平面外一点,且
平面
,
,
分别是
,
上的点,且
,
则满足
的实数
的值分别为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67353848d9521e8e2274dd0e2bbeecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb073bbb13990cd8e5b02812c3e10617.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72de59a5c7940fbdd76edc572936ab62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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3卷引用:广西平果市铝城中学2023-2024学年高二上学期期末模拟数学试题(二)
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名校
5 . 如图,在四面体
中,
,
,
,点
在
上,点
在
上,且
,
,则
( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/c3cd6f1d-afef-43e1-b609-764f1e03aaa4.png?resizew=136)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14390e9b6b44472bdc7a131133ab39b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cd14dfc0024459f9d8e594c95c5106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07dcf0b16163e0e0e0c0f248466ee7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebe72d1b634f1e89d8699e605e7d46af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73d65319fd396b9fd220f7a95a7a6042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8926ddd0b69d714c7310cc5bf23d199d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/19/c3cd6f1d-afef-43e1-b609-764f1e03aaa4.png?resizew=136)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-11-15更新
|
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4卷引用:广西壮族自治区贵港市西江高级中学2024届高三上学期10月月考数学试题
名校
6 . 如图,空间四边形
的各边及对角线长为
,
是
的中点,
在
上,且
,设
,
,
,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/ae23bcae-edce-418d-98e8-904c52d7a313.png?resizew=160)
(1)用
,
,
表示
;
(2)求向量
与向量
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d440a30c7b6bbb7ab5debd6cedeaf3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a9cb32a25c2a8bb99f75633b4cd5ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049131856ba841523793ee3d83099014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eca8aa7145b2327dbccba46da05bb86.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/ae23bcae-edce-418d-98e8-904c52d7a313.png?resizew=160)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b5a51e65e9b56a9970de33ead263a9.png)
(2)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6b5a51e65e9b56a9970de33ead263a9.png)
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|
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(已下线)广西壮族自治区“贵百河”2023-2024学年高二上学期新高考10月月考测试数学试题(已下线)1.1 空间向量及运算(精练)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)福建省厦门双十中学2021-2022学年高二上学期期中考试数学试题福建省福州延安中学2022-2023学年高二上学期10月月考数学试题
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7 . 如图,在长方体
中,E,F分别是AB,BC的中点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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|
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8 . 如图,四面体
中,
,
分别为
,
上的点,且
,
,设
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21288c15cfb16a89ab4336aab9398915.png)
(1)以
为基底表示
;
(2)若
,且
,
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45087cde2d66377517a3fce5553b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330a1dbd5b7700f821750fc8192ec9bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b85c1a38778003289cc609493cafc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab7da6e5ac6f33c5cb6fce130d839d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21288c15cfb16a89ab4336aab9398915.png)
(1)以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ed18a92338c7578c18a5ba3a2ae1ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3102e0c49710e3fdd30451516110ecb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/180bf3ef6597e89ee83684d860972e5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82fbcc4ead7709711f3fed9ef7f781a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03567a1ccb8e1bf5abd716a22bc3788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118c9dd6d9668982082c32debc138297.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae8c7e1db70d46cfcecc8e78625e374.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/525d2b24-f5fc-47ac-b02a-4d404254322d.png?resizew=182)
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9 . 若A,B,C,D为空间任意四个点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b16014a26c3f6decf55e921065fdc170.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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广西南宁市第三十六中学2023-2024学年高二上学期10月月考数学试题天津市南开翔宇学校2020-2021学年高二上学期第一次月考数学试题(已下线)第1.1讲 空间向量及其线性运算-2021-2022学年高二数学链接教材精准变式练(新人教A版2019选择性必修第一册)(已下线)1.1.1 空间向量及其运算