名校
解题方法
1 . 已知函数
,若不等式
对任意实数
恒成立,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047b1b4859fb1c234b0779c508a14f31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3ef767b69e03090ffa35518af9614f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知
恒成立,则
的最大值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36fbef4042281a89deccb71470765cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
3 . 下列命题:
①
中,若
,则
;
②若
,
,
为
的三个内角,则
的最小值为
;
③已知
,则数列
中的最小项为
;
④函数
的最小值为
.
其中所有正确命题的序号是______ .
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d0b9c0c01b49be6e08a111568f77f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b6662c6f84e1c97c9d05d9ae62c1eb.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e22b0859248973d51cd8eeafe373700a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206f73d2f0fa051e76a60bd574c6ab3c.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45496106b492a50c77d472d91463c888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a245373cb2db163f5ab4375431db3cad.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea7da6fbf767f88d0f43e336957fee85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea6ad68f10f098feda5d9b94636bf752.png)
其中所有正确命题的序号是
您最近一年使用:0次
名校
解题方法
4 . 已知
为
上的偶函数,当
时,
,对于结论
(1)当
时,
;
(2)方程
根的个数可以为
;
(3)若函数
在区间
上恒为正,则实数
的范围是
;
(4)若
,关于
的方程
有
个不同的实根.
说法正确的序号是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce427e97019745d570dd2728027fba5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0748eafe2c69f995fdb032b8afc127.png)
(2)方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4724381345ed23396777a9be9466a78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d68361a0dd9b8debcc9d19558184a5c5.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90f2d98207e6688e7233bb22d5908ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccfdd3d02b54e997cbec983d80f6bafd.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17ee5f43412795671704ab0e8d0b2f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b393334bedc719f3474f5afc867042.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
说法正确的序号是
您最近一年使用:0次
名校
5 . 已知函数
定义域为
且满足
,且
时,
,若不等式f(
)≤f(
)+f(a)恒成立,则a∈____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47af453fcc08dd724868dea37179a62c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d561235a011880179ff1bf3f9c049ec7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b3dcf7d83ed876baaba411cbe26491.png)
您最近一年使用:0次
2022-02-20更新
|
480次组卷
|
2卷引用:四川省广安市岳池县2021-2022学年高一上学期期中数学试题
解题方法
6 . 已知函数
满足
,且
,
分别是
上的偶函数和奇函数,对
不等式
恒成立,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebac1228bae0339a547382daf6e2fa30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b148ebfd8746a83018c9bfd0314eb938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44c9ced2a343c4eb166f385c3dbf2217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1cac0c31e58bb778421243705cd03da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
7 . 函数
的最大值为_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c16b5ff79026d68a374229a4e255161.png)
您最近一年使用:0次
2021-11-24更新
|
203次组卷
|
2卷引用:四川省南充高级中学2021-2022学年高一上学期第一次月考数学试题
解题方法
8 . 若函数
满足对任意的
,都有
,且在区间
上是增函数,则函数
是___________________ (填“奇函数”“偶函数”或“无法判断”),且满足不等式
恒成立的
的取值范围是_______________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a4a2f1866239cd00103f2ca149ddd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
9 . 已知函数
,若不等式
对任意的
恒成立,则实数
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a2a0d4def3662a74a967e2f6f81648.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/366839b25310cb3168d411b1d5f73b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-11-03更新
|
2244次组卷
|
6卷引用:四川省绵阳市2021-2022学年高三上学期第一次诊断性考试理科数学试题
名校
解题方法
10 . 已知二次函数
满足
,且
,若不等式
在区间
上恒成立,则实数
的取值范围为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c292ad5ab432ba87d945d952ae84d2b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7a07624cc738da030ed9f2ca79e43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-09-11更新
|
866次组卷
|
6卷引用:四川省南充市白塔中学2021-2022学年高一上学期第一次月考数学试题
四川省南充市白塔中学2021-2022学年高一上学期第一次月考数学试题四川省雅安市雨城区雅安中学2021-2022学年高一上学期10月月考数学试题江苏省常州市新北区西夏墅中学2022届高三上学期开学数学试题广东省广州市第四中学2021-2022学年高一上学期10月月考数学试题(已下线)第5章 函数概念与性质 单元综合检测(难点)(单元培优)-2021-2022学年高一数学课后培优练(苏教版2019必修第一册)(已下线)专题24. 3.4 函数与方程、不等式之间的关系- 2021-2022高一上学期数学新教材配套提升训练(人教B版2019必修一)