名校
解题方法
1 . 已知函数
.
(1)若
是偶函数,求
的值;
(2)若对任意
,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126eddfe371134344899ea908dcc7e46.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264e54b81230f39733dcc4f39cf31c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3257795a1f090f5f676e05bd4384218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-01-10更新
|
552次组卷
|
15卷引用:贵州省遵义市2021-2022学年高一上学期期末考试数学试题
贵州省遵义市2021-2022学年高一上学期期末考试数学试题山西省吕梁市2021-2022学年高一上学期期末数学试题广东省名校联盟2021-2022学年高一上学期期末数学试题广东省清远市2021-2022学年高一上学期期末数学试题河北省秦皇岛市2021-2022学年高一上学期期末数学试题宁夏银川市部分中学2021-2022学年高一上学期期末考试数学试题云南省楚雄州2021-2022学年高二上学期期末教育学业质量监测数学试题云南省楚雄州2021-2022学年高一上学期期末教育学业质量监测数学试题云南省楚雄彝族自治州牟定县第一高级中学2021-2022学年高一上学期期末数学试题广东省云浮市2021-2022学年高一上学期期末数学试题江苏省连云港市灌南高级中学2022-2023学年高一上学期期末数学试题广东省深圳外国语学校致远高中2022-2023学年高一上学期期末数学试题广东省深圳市龙华中学2023-2024学年高一上学期期中数学试题甘肃省2023-2024学年高一上学期1月期末学业质量监测数学试题(已下线)福建省福州市福清第一中学2023-2024学年高一上学期1月月考数学试题
解题方法
2 . 在四棱锥
中,
平面
为
的中点,
.
(1)求三棱锥
的体积
;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc832b837e79c9186ec73d818ff2931f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23d11e19c84255eb0431415c2dec553d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2942390d02efaff57473d103f7950a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/6/6a5d84d0-1a93-48e8-bd11-7cabb8c0c763.png?resizew=160)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d492a2248463e0c0199a25d0f76d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be54e84508decfcce6d2fcbe6c8c1a92.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14d4071b2a24713dfe275d0eac914045.png)
您最近一年使用:0次
3 . 如图,已知正方形
和
边长都为2,且平面
平面
,
是
的中点,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/4a498903-662c-4893-86c5-bb5ad1a936af.png?resizew=175)
(1)求点
到平面
的距离;
(2)求证:
平面
;
(3)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a406f24b5131eb7da9127750319e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cf9a6db3571fa57bfa2d5e4d44c51b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a406f24b5131eb7da9127750319e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/4a498903-662c-4893-86c5-bb5ad1a936af.png?resizew=175)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301925a3de5a772742909eed4109ec73.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94270844f197d524bf1da4f1385befd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301925a3de5a772742909eed4109ec73.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335deb37356b3eabfdc74061f433c4b7.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
.
(1)求实数
的取值范围;
(2)若直线
过椭圆
的右焦点,且交椭圆
于
两点,求弦
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372d64f1d9f198f0655be7529af26d7d.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33400b08941f4f9c0ed12b0e0cdff822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2024-01-02更新
|
377次组卷
|
2卷引用:贵州省黔东南自治州镇远县文德民族中学校2021-2022学年高二上学期期末数学(文)试题
5 . 如图,在直角梯形
中,
,
,且
,现以
为一边向形外作正方形
,然后沿边
将正方形
翻折,使平面
与平面
互相垂直.
(1)求证:平面
平面
;
(2)求点
到平面
的距离
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fff774b4b0087a6f304ce930d359be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0046177466c78f08d45449dc5639bf38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/3/ed66e110-9d08-4051-bf6b-19e3241c7fa6.png?resizew=383)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
您最近一年使用:0次
6 . 已知等比数列
满足
,且
成等差数列,记
.
(1)求数列
的通项公式;
(2)若在数列
任意相邻两项
之间插入一个实数
,从而构成一个新的数列
.若实数
满足
,求数列
的前2n项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8a7db89cda2c624c3072bf9ad45c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5583cd8dd902522cdbcaa96a0b326de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f6000421c5370e4b89f23be199f388.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/100333b7ac8d42288e156bb42948140d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed900c88cf1ca707255cd73398f6321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636a54c9d7dadb5695f9823023e9f52f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed900c88cf1ca707255cd73398f6321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
您最近一年使用:0次
2023-12-20更新
|
247次组卷
|
2卷引用:贵州省黔东南自治州镇远县文德民族中学校2022届高三上学期期末数学(理)试题
7 . 在直角坐标系:xOy中,已知倾斜角为α的直线l经过点
.以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,曲线C的极坐标方程为
.
(1)写出曲线C的直角坐标方程,并指出曲线C的形状;
(2)著直线l与曲线C有两个不同的交点A,B,且
,求α的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cf8af6e62058cc4e2d83d5da7f4c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dce15e048949bd139273ea812c30f74b.png)
(1)写出曲线C的直角坐标方程,并指出曲线C的形状;
(2)著直线l与曲线C有两个不同的交点A,B,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e47d2c70e0de5301124d7d09ecda340.png)
您最近一年使用:0次
2023-12-20更新
|
83次组卷
|
2卷引用:贵州省黔东南自治州镇远县文德民族中学校2022届高三上学期期末数学(理)试题
解题方法
8 . 已知
是等差数列,
是各项均为正值的等比数列,且
,
,
,
.
(1)求
与
的通项公式;
(2)设
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6abbd310bfce5fc6df04add486e95070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ac8c1254a43d5ea8f20803c6c8a421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fe0f4e8a80a2840c0f6929a8a6351b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/144958d8f106c2a5384404a612c35a31.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac07953530e3c248b3438fb200fb1661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
解题方法
9 . 已知在正项等比数列
中,
.
(1)求
的通项公式;
(2)令
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b60e3da4c79cf8edfc2af57a8c2cba.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6270b306175ccbccf8d02d8cfcca8d01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da72309d2507e2f5e5ed88d8cc08963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
您最近一年使用:0次
解题方法
10 . 已知函数
.
(1)解不等式
;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54a0c07847bb5a711881d4ac2bac957.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5e026a565c24617edc36f82fd85e63.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94ae11e65a5c125d804bf537c419efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fccad0a93acd2f36bc78d8a8f3e04e5b.png)
您最近一年使用:0次
2023-12-15更新
|
53次组卷
|
2卷引用:贵州省黔东南自治州镇远县文德民族中学校2022届高三上学期期末数学(理)试题