名校
1 . 不等式
的解集是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae8fff7c98b78992edcd61daf6ea72f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2c7b74fd862d7e3f35e40ae1f626c4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2f87452a6a5fe9dd73766b16d66bf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-15更新
|
297次组卷
|
2卷引用:重庆市松树桥中学2018-2019学年高一下学期期末数学试题
名校
2 . 在
中,
是
边上的中线,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f934b95c22fc1d1acb9c1b498796ce38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f934b95c22fc1d1acb9c1b498796ce38.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 .
中角
,
,
的对边分别是
,
,
,若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d62e60396295cd74d03e38978405bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f1e5d29de6e4d72bfed62d9c14dde5.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() |
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4 . 在平行六面体
,设
,
,
,
分别是
,
,
的中点,则
( )
![](https://img.xkw.com/dksih/QBM/2020/2/9/2395180957474816/2395793034190848/STEM/94605c5d-1462-44cb-b6a4-b37e3d98bd56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e3a8d3186e90410d61bacf16fa9e407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/588e6cf414b66aced4ef274cfcd205c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20db716f8fa0e12630abfa4611eeb9ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0aa6e37c51cb2b7a8e4a87a52ef975.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dae4bf7a2d4a5367a0a2fb8469cff09.png)
![](https://img.xkw.com/dksih/QBM/2020/2/9/2395180957474816/2395793034190848/STEM/94605c5d-1462-44cb-b6a4-b37e3d98bd56.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
5 . 已知圆柱的侧面展开图是一个边长为
的正方形,则这个圆柱的表面积是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 已知
是平面
的法向量,则下列也能作为平面
的法向量的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d46674404969320ac6ef70cb625e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
7 . 如图,三棱柱
中,侧面
为菱形,
的中点为
,且
平面
.
![](https://img.xkw.com/dksih/QBM/2020/2/9/2395180957474816/2395793034846208/STEM/81ba365c-678c-4968-920c-497ef6a52dbe.png)
(1)证明:
;
(2)若
,
,
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://img.xkw.com/dksih/QBM/2020/2/9/2395180957474816/2395793034846208/STEM/81ba365c-678c-4968-920c-497ef6a52dbe.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db87b41df9d3c83d2810a4265d768d3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7fd49bb962841b4575805030e19add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2e238b2757353026133bbe495645e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea67423ce6963c0972867306169f17a.png)
您最近一年使用:0次
2020-02-10更新
|
397次组卷
|
3卷引用:重庆市渝北区松树桥中学校2019-2020学年高二上学期第一次段考考数学试题
名校
解题方法
8 . 如图,
平面
,四边形
为矩形,四边形
为直角梯形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/a1431e32-16b3-4c32-bd49-07c641e2076d.png?resizew=174)
(1)求证:
;
(2)求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/662698361c6b3ddaf0c28a3c87be53e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dde327febef2331a4766a79b433cc02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ff6d7dd48b57f03d82d2c522ee9b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99dfe4b6028cd0a29953bbb50c5a33b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c4e4a162f12d12a082b8d8fdd1aeab9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/a1431e32-16b3-4c32-bd49-07c641e2076d.png?resizew=174)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b92bdf778aa32f238bad820d72d62f0.png)
(2)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d435a91c0447826d31158be0ce5a9e6d.png)
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解题方法
9 . 如图所示,扇形
的半径为2,圆心角为
,若扇形
绕
旋转一周,则图中阴影部分绕
旋转一周所得几何体的表面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/0379caa9-97f4-4956-b083-3a147b2557a4.png?resizew=117)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/3/0379caa9-97f4-4956-b083-3a147b2557a4.png?resizew=117)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-02-10更新
|
708次组卷
|
2卷引用:重庆市渝北区松树桥中学校2019-2020学年高二上学期第一次段考考数学试题
10 . 已知圆锥的母线长为6,母线与底面所成角为60°,则此圆锥的体积为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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