1 . 如图,直三棱柱
中,
,点
在线段
上,且
,
.
为
的重心;
(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/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9073cce40aa78cc9693c988f3eea90aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47af45fbf1714055d9b414a44a8613fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166ccfa0ac0388903f3f5960c7fa3660.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e223e3d40ee025f15ead90746c28b8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/167e4b949f6bda469c5ac4af5a85a0db.png)
您最近一年使用:0次
解题方法
2 . 已知函数
.
(1)求函数
的极值;
(2)设函数
的导函数为
,若
(
),证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a54ae06f45443a86a386b8d10e1d2b3.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ad1f38ab4116e36ab4441b28b55fbe4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f057bf79e066c9e6421f4efb06566a5.png)
您最近一年使用:0次
3 . 已知函数
.
(1)当
时,求函数
在
处的切线方程;
(2)设函数
的导函数为
,若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/949d765feb226500ca0736dd4d0fbd11.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8224b38d6e855172dd0ef7d6db91e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f057bf79e066c9e6421f4efb06566a5.png)
您最近一年使用:0次
解题方法
4 . 如图,直三棱柱
中,
,点
在线段
上,且点
为
的重心,
.
(1)证明:
;
(2)若
,求三棱锥
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/166ccfa0ac0388903f3f5960c7fa3660.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9073cce40aa78cc9693c988f3eea90aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/28/cee33231-7318-4af2-9650-8412edb4e57e.png?resizew=140)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47af45fbf1714055d9b414a44a8613fa.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e223e3d40ee025f15ead90746c28b8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e7135d2f756584a391268253dcea52.png)
您最近一年使用:0次
5 . 已知数列
满足
.
(1)证明:
是等比数列;
(2)求数列
的前n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658cc9b585ee07494dba05bc479f5290.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345edc602f5c52122b91e6864902fb8a.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/444ea8bc0336d59cb20c63125fa98042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
名校
6 . 已知函数
.
(1)当
时,求
的单调区间;
(2)设
,当
有两个极值点
,
时,总有
成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc64ef255eed148ba560aa5a4e5d0f1e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f7866dee992a0ffedd046637b7b9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78cd4f6503e99281832744e80bce8928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/525567a8f3ec552dabc964f0b592d650.png)
您最近一年使用:0次
2023-11-28更新
|
345次组卷
|
2卷引用:四川省攀枝花市2024届高三上学期第一次统一考试理科数学试题
7 . 如图,四棱锥
中,四边形
是矩形,
平面
,
,
是
的中点.
(1)在线段
上找一点
,使得直线
平面
,并证明你的结论;
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/29/c1f27053-d917-44cc-ab7e-fa36bf03aea0.png?resizew=160)
(1)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a642038268517072c5de215d38449e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729a3ac9d8a312996c1aa9eb2e1959fa.png)
您最近一年使用:0次
名校
解题方法
8 . 已知椭圆
的右焦点是F,上顶点A是抛物线
的焦点,直线
的斜率为
.
(1)求椭圆C的标准方程;
(2)直线
与椭圆C交于P、Q两点,
的中点为M,当
时,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(1)求椭圆C的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6068a99026c27433a7fc8932a5d282a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7be008afbf741d994ca8c851e98007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-01-17更新
|
1062次组卷
|
4卷引用:四川省攀枝花市2024届高三二模数学(理)试题
四川省攀枝花市2024届高三二模数学(理)试题宁夏吴忠市2024届高三下学期高考模拟联考试卷(二)理科数学试题(已下线)专题06 直线与圆、椭圆方程(分层练)(三大题型+12道精选真题)黑龙江省哈尔滨市第一二二中学校2023-2024学年高二下学期3月月考数学试题
9 . 如图,在几何体
中,四边形
是等腰梯形,四边形
是矩形,且平面
平面
,
,
分别是
的中点.
;
(2)若点
到平面
的距离是
,求
与平面
所成的线面角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a68a008a22d5a8cea5fe8dcf31e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ba74e936c53298ad7a545afc2d1b83d.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/4e88ee337b7c9082f4fe84fd1752d55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84be64d28b1623e71ad989f37336b1f2.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70db40c42655327adee01caedfc9d50c.png)
您最近一年使用:0次
解题方法
10 . 如图,四棱锥
中,四边形
是矩形,
平面
分别是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/da95d60c-bf0b-459d-8fea-0d7d0c4c0a86.png?resizew=165)
(1)证明:
平面
;
(2)若
,求三棱锥
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c72a40ed555c911254647cb3ee175465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3038b3822fa224b2984bc423d2ad0a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/21/da95d60c-bf0b-459d-8fea-0d7d0c4c0a86.png?resizew=165)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f9d682e5d3cc8573574d8d11636758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98a642038268517072c5de215d38449e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723932f1d37ae7b8700bcbefee627865.png)
您最近一年使用:0次