名校
1 . 若正数
满足
,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66651e242bc298ea6356e9dbee0f79cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-05-16更新
|
664次组卷
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3卷引用:河南省商丘市部分学校联考2024届高三下学期5月适应性考试数学试题
名校
2 . 在
中,角
的对边分别为
,
为线段
延长线上一点,
平分
,且直线
与直线
相交于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1feb1a9a449051eb5a392bfb0c954616.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120742a7cf249723189d6f882feb8ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5157b42da58d55daad27d98b2fec15ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1feb1a9a449051eb5a392bfb0c954616.png)
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2024-05-11更新
|
326次组卷
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2卷引用:河南省商丘市部分学校联考2024届高三下学期5月适应性考试数学试题
名校
解题方法
3 . 当
,且
时,我们把
叫做数列
的子数列.已知
为正项等比数列,且其公比为
.
(1)直接给出
与
的大小关系.
(2)是否存在这样的
满足:
成等比数列,且子数列
也成等比数列?若存在,请写出一组
的值;否则,请说明理由.
(3)若
,证明:当
,
时,有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc9e15cba1e06e8ecd151d233ecc4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ff2500b5484b40bb2ccec65979cba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f070544508ef8ab537b19ef069d5fe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09e15be6eb86b5f1746b0036a87c9ca7.png)
(1)直接给出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddcc815a87e95af8100f0c2c7422d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)是否存在这样的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94299c635e889a3915aeb2b785419ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94299c635e889a3915aeb2b785419ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cee6526c7e1d9a04854271e135c9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f94299c635e889a3915aeb2b785419ce.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddbc131b15e1df6cf64e65eb88e23042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699e55c211a6e091cc7a9d2cde3ed981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898062ebfccd4fca082aa8a9d79a094b.png)
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名校
4 . 已知等差数列
的前
项和为
,且满足
成等差数列,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0c4c76ff4d82d4bbf40b5e641e0fe00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1928c254cfada1f75a5cd1e34db5a63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999465d0e871febde66296a0cbf058c.png)
A.![]() | B.1 | C.2 | D.3 |
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2024-05-08更新
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382次组卷
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3卷引用:河南省商丘市部分学校联考2024届高三下学期5月适应性考试数学试题
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5 . 若正数
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fe5f5f3a4941b3bfdd981375fe30a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
A.6 | B.9 | C.![]() | D.![]() |
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2024-03-03更新
|
288次组卷
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3卷引用:河南省商丘市虞城县完全中学2023-2024学年高一上学期期末考试数学试题
名校
6 . 已知函数
.
(1)设函数
,实数
满足
,求
;
(2)若
在
时恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a523357d0335cabaf92c2b5283d0174d.png)
(1)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9396a737848eedcb56625b2cda4671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e8b864a9c4f61a735b23d788b1cf7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd31dcfaf4438d5be027758d446c7f70.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5931095eb29d9d6b55ed9fa32a4ef1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc3089af5f7ca5a33d44d6fac4b6ebf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-02-29更新
|
361次组卷
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4卷引用:河南省部分学校2023-2024学年高一上学期期末大联考数学试题
名校
7 . 已知
为实数,则下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a14c388e1e2e5a2ff1ccf6caffbee0d.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
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2024-02-29更新
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326次组卷
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4卷引用:河南省部分学校2023-2024学年高一上学期期末大联考数学试题
解题方法
8 . 已知函数
.
(1)求不等式
的解集;
(2)若对于
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeafd95bddad3cc3148adc5481c989fa.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e799c1971ec9b387e94d04fad4230e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-02-17更新
|
439次组卷
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3卷引用:河南省商丘市2023-2024学年高一上学期期末考试数学试题(B版)
解题方法
9 . 设
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5229aa3c63074e9cc78b448d900bba9.png)
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解题方法
10 . 对任意的
,下列不等式恒成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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