名校
解题方法
1 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d4c6940faad48cb407e5fe6148a396.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d500e357c8050a20568b2bbfa585a192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67d4c6940faad48cb407e5fe6148a396.png)
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名校
解题方法
2 . 意大利著名数学家斐波那契在研究兔子繁殖问题时,发现有这样一列数:
,其中从第三项起,每个数等于它前面两个数的和,后来人们把这样的一列数组成的数列称为“斐波那契数列”,用符号
表示.
(1)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
________ .
(2)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711585763be195286008923bfca951e9.png)
________ .(结果用
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70faf57b0268b70477188fcef1295fdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fc06fc7a25cc03d94de0fd159a2134.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c07b3dea53f159222b0b348a9502c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f6cc1c329e5fdfe4c0122c1e441d53c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711585763be195286008923bfca951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 已知函数
,则函数
,
的零点个数( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d1f6f459292de1002f863203ce91a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d76188948a93ee6e401e68c9559ebb61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daec6b3af19ab0c9bfc551a4e3970f6b.png)
A.3个 | B.5个 | C.10个 | D.9个 |
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解题方法
4 . 已知函数
.
(1)若
,求函数
的零点;
(2)探索是否存在实数
,使得函数
为奇函数?若存在,求出实数
的值并证明;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de27aa3a5565dfcee2bbecd84ad1770d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8efdff29ef3cdf577b3d69b0e7a31f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)探索是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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5 . 如图,点G为△ABC的重心,过点G的直线分别交直线AB,AC点D,E两点,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2d6e4855329b54127b3924a17b49de.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
________ ;求
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2d6e4855329b54127b3924a17b49de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2faa5344f6cc4235fb763946599e3bf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934d37c81b2266c7b86bcc11afaf5f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27e62ba44cbfec6823ebc1f0c7457fb.png)
![](https://img.xkw.com/dksih/QBM/2023/7/27/3290110616117248/3296114761932800/STEM/32ddd85dc36e40cb9200ffded2dfa267.png?resizew=130)
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6 . 已知向量
,设函数
.
(1)求函数
的解析式及单调区间;
(2)设
内角A,B,C的对边分别为a,b,c若
的面积为
,求a的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b8a81dd7ca6a9473039c39b0f9c122.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f489967b77a4a8895efa6613a74ef742.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/268dfa92ad5623a8e8a9f487426e031a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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2023-08-05更新
|
301次组卷
|
2卷引用:江苏省淮安市淮安区2022-2023学年高三上学期期中数学试题
名校
解题方法
7 . 若
,则
的值( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32986374698949eedd62bb4460402af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e4d94d41ffc58918e79bf193c1537c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-08-05更新
|
526次组卷
|
2卷引用:江苏省淮安市淮安区2022-2023学年高三上学期期中数学试题
解题方法
8 . 已知复数
,
为虚数单位.
(1)求
;
(2)若复数
是关于
的方程
的一个根,求实数m,n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad2b1f562018fccd4881768472b2771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43e49552a5099a8b2a442247c65a243.png)
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解题方法
9 . 函数
的定义域为
,对任意
,恒有
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e4b065b20a0514e69471368f509fc9.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fec6c065579c4d4dd1eb84223e27d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51e817f37f5a814e856ebc4a16d676ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f71599cd707909eb30d2a54be7f8c966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e4b065b20a0514e69471368f509fc9.png)
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10 . “幸福感指数”是指某个人主观地评价他对自己目前生活状态的满意程度的指标,常用区间
内的一个数来表示,该数越接近10表示满意度越高.现随机抽取10位某市居民,他们的幸福感指数为 3,4,5,5,6,7,7,8,9,10,则这组数据的第80百分位数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59583f60710fc5ee4404593a1497513d.png)
A.7.5 | B.8 | C.8.5 | D.9 |
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2023-08-04更新
|
224次组卷
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3卷引用:江苏省常州市田家炳高级中学2022-2023学年高三暑期自主学习情况调研数学试题