名校
1 . 指数级增长又称为爆炸式增长,其中一条结论是:当
时,指数函数
在区间
上的平均变化率随t的增大而增大.
已知实数a,b,满足
.
(1)比较
和
的大小;
(2)当
时,比较
和
的大小;
(3)当
时,判断
的符号.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da53929a8f67b9aa3827fdbd73ebd265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb83ad27846200a8ac81ff4cf7fd510.png)
已知实数a,b,满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dffdd1af016ecdb6d75a43e089a06e62.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdaba8b1591046933f2f725b6b1bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0d2b7d558996d2e2a2ed1ce3011d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9237dbe3a4f28962ef2870b4e7dab599.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed40cc05a505673f9205c4dba2f1b6f.png)
您最近一年使用:0次
2023-03-23更新
|
949次组卷
|
3卷引用:辽宁省沈阳市2023届高一下学期教学质量监测数学试题
解题方法
2 . 已知函数
,
(
且
),且
.
(1)求实数a的值;
(2)设
,
,
(
的反函数),当
时,试比较
,
,
大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369efe9799ca38ec7940cdd18c1c3fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84518e68c9e73dee93a8a3cafce4d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ec93c28346da63c7eb6e894937977c.png)
(1)求实数a的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e21cbaae53db40485165c26864c46f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae49ac1b38c486b9d5c8fcba91259a06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eae56bd2fd434a26eb5c7c632410c8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f05f89e726bc6bc77463034e0654cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047056c99b39c70fa40d3c8178e5b631.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c7eb49a823f757461cd5260757b088.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd84a8f95166367063218ee03ffd5a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db31d2bbc9b044646fd026f239e7b62.png)
您最近一年使用:0次
3 . 已知函数
(
).
(1)指出
的单调区间;(不要求证明)
(2)若
,
,
,
满足
,
,
,且
(
,
,
),求证:
;
(3)证明:当
时,不等式
(
)对任意
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf40041a26fe4539efc7185b45dcf53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
(1)指出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ec808ad60dbf016632ec816eaca1df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3916e25d592d36e90fe4f35be72c43c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe72ccd2bee6a6e9d7199261b3e3da69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64c6bd88c09d6848101421a9564c19c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c45176df950dfe48b8ca7eac08ee349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd69d26f76d5a55cf072fa49b53d437.png)
(3)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30d7482925b44b2d55a8d1c9b8fcc1be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28652e52c0b02a343e618935ea625cbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813b9aa31af28f99d21fc0dc0c95475c.png)
您最近一年使用:0次
4 . 已知函数
.
(1)求
的单调区间;
(2)设
,
,
,比较
,
,
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490dce7cb6cc2283383d00f7df5b5aac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92560f1c46e425ef74cb17b3824efb12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfa9081d42f39ed5e13b6c10b3d3b2a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b642125439c2bd14fa7a4c58bcdcae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
解题方法
5 . 已知偶函数f(x)的定义域为R,且在(﹣∞,0)上是增函数,试比较
与f(a2﹣a+1)的大小.
![](https://img.xkw.com/dksih/QBM/2016/3/8/1572526481702912/1572526487756800/STEM/ab89ad0ea3e843958a52684b6be19fb5.png)
您最近一年使用:0次