名校
解题方法
1 . 如图,已知菱形
和菱形
的边长均为2,
,
,
分别为
、
上的动点,且
.
平面
;
(2)当
的长最小时,求平面
与平面
的夹角余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31285c747ac70d3ea0beac9b658d027.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793e03b60fc5ac445d6d44c508e7e73e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b138770c405307ea4fc828624645e2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6541c0cb89f08aa4c937c0beb915e0a7.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82cb18c10820d927ecd53326f58aaf8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881129039cb98be128af55ffa1d3b7dc.png)
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2024-06-04更新
|
471次组卷
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2卷引用:河北省邯郸市2024届高三下学期高考保温数学试题
2 . 已知函数
.
(1)当
时,求函数
在
处的切线方程;
(2)若
为增函数,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4d05faec455cea37e004e18cfb7e290.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
3 . 如图所示,正方体
的棱长为
分别为
的中点,点
满足
.
,证明:
平面
;
(2)连接
,点
在线段
上,且满足
平面
.当
时,求
长度的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3da8c338342e38c9aa3f274c053fd5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b684d2e78a0eb1b406913f2730e1d226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fef1fc63360a6da2e076505f1fc2dbd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a151755a39b4209e75645d39a8427af6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73b3cf0f585938ede9eca890a6eb326d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8badfeb9e7556486e02ab60df4dd32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43713ea7ad8151c6d035f9c7c63996d0.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417546ea1b98d330624f1eb50e1dc54c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c1778e7c419cb37224a753264666ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebbfe5e1e3a23269101ae0e9b05a3fe.png)
您最近一年使用:0次
2024-05-31更新
|
493次组卷
|
3卷引用:河北省邯郸市大名县第一中学2023-2024学年高一下学期5月月考数学试卷
河北省邯郸市大名县第一中学2023-2024学年高一下学期5月月考数学试卷浙江省杭州第二中学2023-2024学年高一下学期期中考试数学试卷(已下线)6.4.1直线与平面平行-【帮课堂】(北师大版2019必修第二册)
名校
解题方法
4 . 在
中,D是线段BC上的一点(不含端点),
.
(1)若
,求AD的长;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a466276f3b4a9a59addcaa6f68b6a850.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52837cc67900d6903b6d8a765c57c73a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/961e6a41280039e84f4c260dfbe38cef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2abe5da7ee1a2ff3ca5dec7a2d04dc.png)
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2024-05-31更新
|
1000次组卷
|
2卷引用:河北省邯郸市大名县第一中学2023-2024学年高一下学期5月月考数学试卷
名校
解题方法
5 . 已知函数
则
图象上关于原点对称的点有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baae248e74150c36948ea1f49712bf33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.1对 | B.2对 | C.3对 | D.4对 |
您最近一年使用:0次
2024-05-31更新
|
1098次组卷
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2卷引用:河北省邯郸市大名县第一中学2023-2024学年高二下学期5月月考数学试卷
名校
解题方法
6 . 如图,将一块边长为4m的正方形铁片上有四块阴影部分,将这些阴影部分裁下来,然后用余下的四个全等的等腰三角形加工成一个正四棱锥形容器,下列说法正确的是( )
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.正四棱锥的体积最大值为![]() |
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2024-05-28更新
|
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2卷引用:河北省邯郸市2024届高三下学期高考保温数学试题
7 . 已知向量
,若向量
在
上的投影向量为
,且
与
不共线,请写出一个符合条件的向量
的坐标________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6404634355bb31936069b7c216272c18.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/81cdfd82868aefda05f52913dfd762a6.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/64c5562bd4d1b54424330cb6329cd79d.png)
您最近一年使用:0次
8 . 记
为等比数列
的前
项的和,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eab8f8926b996f9bee57d96067f5bac.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/752cf42c1043745a337b6c0394709c70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80428714c231ffb2c088af51ba22fd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eab8f8926b996f9bee57d96067f5bac.png)
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2024-05-20更新
|
565次组卷
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2卷引用:河北省邯郸市2024届高三下学期高考保温数学试题
9 . 中国地震台网测定:2024年4月3日,中国台湾花莲县海域发生里氏7.3级地震.已知地震时释放出的能量E(单位:焦耳)与地震里氏震级M之间的关系为
,2011年3月11日,日本东北部海域发生里氏9.0级地震,则它所释放出来的能量约是中国台湾花莲县海域发生里氏7.3级地震的多少倍?( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f81e0e9e0749ac2e043ac323ee40bf.png)
A.98 | B.105 | C.355 | D.463 |
您最近一年使用:0次
解题方法
10 . 对任意两个非零的平面向量
和
,定义:
,
.若平面向量
满足
,且
和
都在集合
中,则
( )
![](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/1ce7f5b1bfb32ebc6955eb612b14098f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdf80423bfcffdeee18fba9c210b8dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e8b95a61af300412fc65f846089028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b123b0eeb7f0575087577eb3adc50ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bb7c28c450198e14a6003c8429ea4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9000860e1d6cde8e3f21b47a37dcd9ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d55c5d426e5661e8d34f38dbc75588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4905f87508746d687b6de41b563ca5dc.png)
A.1 | B.![]() | C.1或![]() | D.1或![]() |
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2024-05-19更新
|
864次组卷
|
4卷引用:河北省邯郸市2024届高三下学期学业水平选择性模拟考试数学试题
河北省邯郸市2024届高三下学期学业水平选择性模拟考试数学试题河北省邯郸市2024届高三第四次调研监测数学试题辽宁省辽阳市2023-2024学年高三下学期二模数学试卷(已下线)压轴题03不等式压轴题13题型汇总 -1