名校
1 . 如图,在三棱锥S—ABC中,SC⊥平面ABC,点P、M分别是SC和SB的中点,设PM=AC=1,∠ACB=90°,直线AM与直线SC所成的角为60°.
(2)求二面角M—AC—B的平面角的正切值;
(2)求二面角M—AC—B的平面角的正切值;
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2022-03-29更新
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11卷引用:重庆市铁路中学校2023-2024学年高二上学期开学考试数学试题
重庆市铁路中学校2023-2024学年高二上学期开学考试数学试题宁夏银川一中2021-2022学年高一上学期期末考试数学试题(已下线)专题25 二面角相关问题训练-【重难点突破】2021-2022学年高一数学常考题专练(人教A版2019必修第二册)(已下线)第12练 空间直线、平面的垂直-2022年【暑假分层作业】高一数学(人教A版2019必修第二册)(已下线)高一数学下学期期末精选50题(提升版)-2021-2022学年高一数学考试满分全攻略(人教A版2019必修第二册)广东省七区2021-2022学年高一下学期期末联考数学试题(已下线)第02讲 基本图形的位置关系(3)河南省周口市商水县实验高级中学2021-2022学年高一下学期期末考试数学试题陕西省咸阳市武功县普集高级中学2022-2023学年高一下学期6月第三次月考数学试题福建省福州第四中学2022-2023学年高一下学期期末考试数学试题江西省南昌市第十九中学2022-2023学年高二下学期期中考试数学试卷
名校
解题方法
2 . 如图,三棱柱
中,
,
,
,
为
的中点,且
.
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896442813341696/2946916043194368/STEM/de7d8380b27e4339a89d0366fb425946.png?resizew=229)
(1)求证:
平面
;
(2)求
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/615fc8790237a1b09af51d6bcad6b595.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82343ddf8316e0a9a50c21c422bdc930.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f106f167eeee14bda3235c13cf0d00f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3d5520be2c7ed4f4c8d1ca8270cb8a3.png)
![](https://img.xkw.com/dksih/QBM/2022/1/17/2896442813341696/2946916043194368/STEM/de7d8380b27e4339a89d0366fb425946.png?resizew=229)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb689000fa7a3b425be3196d8b0f32af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b4b90ea380718f572694d69d1ac9c65.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
您最近一年使用:0次
2022-03-29更新
|
946次组卷
|
2卷引用:重庆市铁路中学校2023-2024学年高二上学期开学考试数学试题
名校
解题方法
3 . 如图,已知三棱锥
,等腰直角三角形
的斜边是
,且
,
,
,
是
上的点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/21470166-f111-47b0-82a7-0aa7db7018c0.png?resizew=180)
(1)求证:
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41ffdaecfb3c73d403179e5745c71a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80137ee8af4684ce558242d8b3f1459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2395720e6d6aeb7efdcd8e921849acf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0d5a2cd05e4476fc72271e8fdb59a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d822262ff00915910e5b87d81ad1ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8a5b986012c7aa71c23a3fbf5e65b16.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/21470166-f111-47b0-82a7-0aa7db7018c0.png?resizew=180)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3f843b83e62bab294988a7ea134a63.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11a34c6396009acb9d0e56955572656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2021-12-10更新
|
411次组卷
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2卷引用:重庆市铁路中学2021-2022学年高二上学期12月月考数学试题
名校
解题方法
4 . 如图,在四棱锥S
ABCD中,ABCD为直角梯形,AD∥BC,BC⊥CD,平面SCD⊥平面ABCD,△SCD是以CD为斜边的等腰直角三角形,BC=2AD=2CD=4,E为BS上一点,且BE=2ES.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/ab40eb59-0449-4c5c-a978-3e844888fdc0.png?resizew=137)
(1)证明直线SD∥平面ACE;
(2)求点E到平面ACS的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc339cf6dd66599db64fa3fa44e608.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/ab40eb59-0449-4c5c-a978-3e844888fdc0.png?resizew=137)
(1)证明直线SD∥平面ACE;
(2)求点E到平面ACS的距离.
您最近一年使用:0次
2022-11-05更新
|
389次组卷
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2卷引用:重庆市铁路中学校2022-2023学年高二上学期期中数学试题
名校
解题方法
5 . 已知数列{
}的前n项和为
且满足
=
-n.
(1)求{
}的通项公式;
(2)证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab5128a0393c0a1dce8af96f24de54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d51f29158b7a14eafc5d3847f2a51d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7454f7035c793f0b2a25406bebad1229.png)
(1)求{
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ab5128a0393c0a1dce8af96f24de54f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)求
在点
处的切线方程(其中
为自然对数的底数);
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a1f250516fdeda429f8ee1eb7985a23.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf4dde954ab58019970e727bac75321e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd143a57a268a5a8ef486e2a4d5c0a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5967cc62862986840af4dd29df4bcc41.png)
您最近一年使用:0次
2022-07-13更新
|
796次组卷
|
4卷引用:重庆市九龙坡区2021-2022学年高二下学期期末数学试题
名校
解题方法
7 . 如图,在四棱锥E﹣ABCD中,DA
平面ABE,四边形ABCD是边长为2的正方形,AE=EB,F为CE上的点,且BF
平面ACE.
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893375721603072/2893519773794304/STEM/c39088129f2746a18d1f85a499f7ce11.png?resizew=199)
(1)求证:AE
平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://img.xkw.com/dksih/QBM/2022/1/13/2893375721603072/2893519773794304/STEM/c39088129f2746a18d1f85a499f7ce11.png?resizew=199)
(1)求证:AE
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1633988fd62a652de726ee92a917b52d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
您最近一年使用:0次
2022-01-13更新
|
342次组卷
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2卷引用:重庆市育才中学2021-2022学年高二上学期期中数学试题
名校
解题方法
8 . 已知
,
,
为平面上一动点,且满足
,记动点
的轨迹为曲线
.
(1)求曲线
的方程.
(2)若
,
过点
的动直线
:
交曲线
于
,
(不同于
,
)两点,直线
与直线
斜率分别记为
,
.
①求
的范围.
②证明:
为定值,并计算定值的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eda2eac3ad21518f181b966edc7c81e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7b74230f604916c843cfeeb0fe19501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2fc44c5dfd20e5e1c74b251b61457c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dcfafc42b4dfe71c68ca3b736eea1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715b8ed88611ca407427147537a589e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9153ab748ff66af41e5f56b12f327cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0684655e622ec9677660a79a013754f.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6ae9d26b2f1d297dfd9f12af57ddea.png)
您最近一年使用:0次
2022-01-13更新
|
731次组卷
|
4卷引用:重庆市育才中学2021-2022学年高二上学期期中数学试题
重庆市育才中学2021-2022学年高二上学期期中数学试题(已下线)数学-2022届高三下学期开学摸底考试卷(江苏专用)江苏省盐城市四校2022届高三下学期期初联合检测数学试题浙江省金华十校2022-2023学年高二上学期期末联考模拟数学试题1
名校
解题方法
9 . 已知函数
,
.
(1)若
,求
的取值范围;
(2)求证:
存在唯一极大值点
,且知
;
(3)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f035e42df8f6be20fe99d36245395d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beca3a6d6b6f5dbad1d6466c1d3a60b7.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559250e7a91f36fe7a8ec6ce6a1550f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c28ef59d2079f8779315c30f0e45bf9.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dddca059c0e724cff370b46d578ec74.png)
您最近一年使用:0次
2021-10-24更新
|
1340次组卷
|
4卷引用:重庆市育才中学校2023届高三上学期期中数学试题
重庆市育才中学校2023届高三上学期期中数学试题重庆市巴蜀中学2022届高三上学期高考适应性月考(三)数学试题(已下线)第六章 导数与不等式恒成立问题 专题一 两类经典不等式 微点2 两个重要的对数不等式天津市河西区2024届高三下学期第一次质量调查数学试题
名校
10 . 在四棱锥P-ABCD中,底面ABCD为直角梯形,BC//AD,∠BAD=90°,PA⊥平面ABCD,AD=2PA,PA=AB=BC,E为PD中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/50e834c0-bf0c-4da1-97a5-65d60a78c57a.png?resizew=160)
(1)证明:CE//平面PAB;
(2)求平面PAB与平面PCD的夹角的余弦值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/50e834c0-bf0c-4da1-97a5-65d60a78c57a.png?resizew=160)
(1)证明:CE//平面PAB;
(2)求平面PAB与平面PCD的夹角的余弦值.
您最近一年使用:0次
2021-12-10更新
|
348次组卷
|
2卷引用:重庆市铁路中学2021-2022学年高二上学期12月月考数学试题