解题方法
1 . 若a,b均为正实数,且满足
.
(1)求
的最大值;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89dc8118d95d6c7bd5b7d38667a498e8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcb79c362bddb898f8a9d02a5f5d085.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd9ff4f42b949e370af7b5be296a7ab.png)
您最近一年使用:0次
2024-06-08更新
|
335次组卷
|
3卷引用:四川省南充市2024届高三高考适应性考试(三诊)文科数学试题
名校
解题方法
2 . 已知函数
.
(1)当
时,求
的最小值;
(2)①求证:
有且仅有一个极值点;
②当
时,设
的极值点为
,若
.求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2efe2b4b78548b27554a16f30cbbda8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c04c105ef35ea19d5a74738079e758.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae1942a92849b7de5cf879777bf5868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0821dd73cd58f5b7dc26dbea4b7eed29.png)
您最近一年使用:0次
2024-06-08更新
|
664次组卷
|
3卷引用:四川省南充市2024届高三高考适应性考试(三诊)文科数学试题
解题方法
3 . 已知如图,在矩形
中,
,
,将
沿
折起,得到三棱锥
,其中
是折叠前的
,过M作
的垂线,垂足为H,
.
;
(2)过H作
的垂线,垂足为N,求点N到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d4746df85049d1651d3f6c30212a7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71719fa9855745e17362dc00fe945ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f0296c53918018745f4e3906e2dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f449d7c07d9172d77df02b8b058274d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d100d4051c41cab43668f800fa2693bc.png)
(2)过H作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f35614aff055b98b76ca262f64e629d.png)
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4 . 己知如图,在矩形
中,
,将
沿着
翻折至
处,得到三棱锥
,过M作
的垂线,垂足为
.
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4661615c1b22a44ed1396d5f05831967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b9f0296c53918018745f4e3906e2dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71719fa9855745e17362dc00fe945ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e261c02846b9c842b77e7792481ad6e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d100d4051c41cab43668f800fa2693bc.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b70049601f57c8a2ece170c0a9c3c05.png)
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5 . 对于数列
,规定
为数列
的一阶差分,其中
,规定
为数列
的k阶差分,其中
.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e041b6f4afd9b5090e4a6b05c9b82ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6558223c3276e691c569a665b9ac5d08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f781d8e7a2965dff564da860e2f8d32b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7526cb1a1beabec0268efd30460e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6a804f6bed86e43859b180f466aa55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bb3d7598f05034a952bf5495354b9f.png)
A.7 | B.9 | C.11 | D.13 |
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6 . 已知圆
,动圆P与圆M内切,且经过定点
.设圆心P的轨迹为曲线
.
(1)求曲线
的轨迹方程;
(2)若
,过点
的直线l与曲线Γ交于M,N两点,连接
分别交y轴于P、Q.试探究
是否为定值?若是,求出该定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88584870885ec28a89f46ca33d8237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e761231888b3eefd1333a499376c9a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d65f0f909b11f0337f3c62842fa742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ceadd21e8eb0f48c059a5947f5698378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f34e3ec3ed9e2ac78f9603e24d9648c.png)
您最近一年使用:0次
7 . 已知集合
,集合
,集合
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255d8583fc7ebf0d40c29bbfaa6fa2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ddc3e129224dc49cce23eb91032c75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5efb85d2d0daa6a74f1c5fa6737ae1f8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-05-27更新
|
656次组卷
|
3卷引用:四川省南充市2024届高三高考适应性考试(三诊)文科数学试题
四川省南充市2024届高三高考适应性考试(三诊)文科数学试题四川省南充市2024届高三高考适应性考试(三诊)理科数学试题(已下线)期末押题卷02(考试范围:高考全部范围)-【帮课堂】2023-2024学年高二数学同步学与练(苏教版2019选择性必修第二册)
解题方法
8 . 若实数x,y满足约束条件
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e763cd81960d7fbd31ea211be29bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75407f5349719aba26f58213459793eb.png)
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解题方法
9 . 已知点F是双曲线
的左焦点,点
是该双曲线的右顶点,过点
且垂直于x轴的直线与双曲线交于
两点,若
,则该双曲线离心率的取值范围为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5c374348ca83ae90f3ec2408b0defd.png)
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解题方法
10 . 已知函数
的定义域均为R,函数
的图象关于原点对称,函数
的图象关于y轴对称,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8586e22c48d0cbe3e05b13a587276020.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62932e8fa312b8aa9cd882df8b67f659.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fb5e3c82f6a63eff281d22c5dce3717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3271fc0fd59036ecf1e85e7264966f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dcc0fc71d90def57af858af9ca180e1.png)
A.![]() | B.![]() | C.3 | D.4 |
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