12-13高二上·甘肃天水·期末
1 . 已知函数
,(
),常数
.
(1)试确定函数
的单调区间;
(2)若对于任意
恒成立,试确定实数
的取值范围;
(3)设函数
,求证:
(
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dfa6354d227f69ad3eb470d7c4f6e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f0d68648b10fce54dfc19c5ee60086d.png)
(1)试确定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b52cea78b467b5f7aad62f034c4ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bfc2f1af386882ce8ff95da2b4ec802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f5867345de617d6739d3c94830b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec075403b4e6b5e385ee93b4703fab2.png)
您最近一年使用:0次
11-12高三上·广东佛山·阶段练习
2 . 设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c25f2a90574092f1a8ad48ef049411.png)
且
(1)求
的单调区间;
(2)求
的取值范围;
(3)已知
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63c25f2a90574092f1a8ad48ef049411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/758639a4c7b8ba76d22252dac250e74a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd52704ee09d327d2ef9f74a2054d6bd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f6c6360ffafb6508c02d37a7a3c20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5efe66db991b562c73ffb16c1e585870.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
11-12高三上·广东茂名·阶段练习
3 . 已知函数
.
(1)求函数
的单调区间与最值;
(2)若方程
在区间
内有两个不相等的实根,求实数
的取值范围; (其中
为自然对数的底数)
(3)如果函数
的图象与
轴交于两点
、
,且
,求证:
(其中,
是
的导函数,正常数
、
满足
,
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef20b83b0e27ec3b65067a6e891d0d4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f5b67393dc60ad176fb2a3c900f14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f909328384f9c52134243753d9c954ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
(3)如果函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00210f79b04a8f6bc1922433d00bc89a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ec3d75e53b990bc8f9a4622928dd21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27b583230a32b774445332490c511989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d41acc47493556617fe7b9e55093d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5048d4451deb23a306f21a6365ea603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b70d4a3fc3e01b5a6358cf4e57578e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9f0e2dd522765dab52b5905a0d59d.png)
您最近一年使用:0次
2011·湖北省直辖县级单位·三模
解题方法
4 . 已知函数
,
.
(1)若函数
在
时取得极值,求
的单调递减区间;
(2)证明:对任意的
,都有
;
(3)若
,
,
,求证:
(
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b353965a839faccfe8692822c5d7bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b8ee975a46f98d84a7790e6be0ef2a3.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f50750782cfc3d4fbe990473027516f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(2)证明:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df4a8b3a9f5a91db0fca4b9cb9b8fa7.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203c46b854cc63681756ffc89e91713e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e19a71fc2da2a66e2538acda02947c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adca5c10df3ad920c978e1963501679c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
您最近一年使用:0次
10-11高三·浙江杭州·阶段练习
解题方法
5 . 已知函数
.
(1)如果
,求
的单调区间和极值;
(2)如果
,
,
,
,函数
在
处取得极值.
(i)求证:
;
(ii)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684f18d262e4e1d4b5c8cd207025d91.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9016d5eea6528eee0549ed213d1e6e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8351ec1448b9cfb1bd5164e66e88842c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f79359f064de6ee669771fa30e8df49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3647c8930d335e498e90fb2cc15a982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a462f40a65837da43de04d8b7630f25.png)
(i)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7503a89732cbcaac623d08162e049f.png)
(ii)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d850479a2ab093551013ca136a767544.png)
您最近一年使用:0次
真题
名校
6 . 设
,对任意实数
,记
.
(I)求函数
的单调区间;
(II)求证:(ⅰ)当
时,
对任意正实数
成立;
(ⅱ)有且仅有一个正实数
,使得
对任意正实数
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5dd8afed2e947c364ade942d8d82e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f31026c9ddedae8a9aee8decd6f93e3.png)
(I)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a5f7c0e32085550dec8666675047ca.png)
(II)求证:(ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f403d0b530489c6273667d147b7c559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(ⅱ)有且仅有一个正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f91b32c61d4c322723b00aaca51f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2016-11-30更新
|
2271次组卷
|
3卷引用:2007年普通高等学校招生全国统一考试理科数学卷(浙江)
真题
7 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)对任意正数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc312f3f7ee4997ab1f66bd68af55b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18852c5e9474249613b566e8ea59734f.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e15cbd7c42d7b15d7ba8d2b28ab8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对任意正数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0cb3a21735c5a762c67614e3ce9e0f.png)
您最近一年使用:0次
2010-03-31更新
|
1605次组卷
|
2卷引用:2008年普通高等学校招生全国统一考试理科数学(江西卷)
8 . 已知函数f(x)=a
+2x+ax+lnx,(a∈R)
(1)讨论函数f(x)的单调性;
(2)设g(x)=
,若对任意给定的x0∈(0,2],关于x的函数y=f(x)-g(x0)在(0,e]上有两个不同的零点,求实数a的取值范围.(其中e为自然对数的底数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
(1)讨论函数f(x)的单调性;
(2)设g(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a269c4815f5b6511dd2fa9e7a0210c41.png)
您最近一年使用:0次