1 . 已知函数
.
(1)求函数
在区间
上的最值;
(2)求证:
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd78609a8ee676b503340a7558a3669d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390c620c0fd4a2cd8622171bdaf05f5d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669ec52f272b84c2fae0e705d8994719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba2be31d987108fba76dbca933b92d8c.png)
您最近一年使用:0次
2019-12-28更新
|
1214次组卷
|
2卷引用:2020届吉林省长春市五校联考高三上学期期末 数学(理)试题
11-12高三下·浙江·阶段练习
2 . 设
,圆
:
与
轴正半轴的交点为
,与曲线
的交点为
,直线
与
轴的交点为
.
(1)用
表示
和
;
(2)求证:
;
(3)设
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcc31dcdb99754fc452ff2b92a2fb8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b34f896988095b77687e2d076f2c2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b070df5084dc577a54cb709981f3a94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b045709f0b627247ba171a07eb9425.png)
(1)用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15526f7c892333030073b85fc3baee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87de3864d9d0ce93638a99b87590f3b.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9158db048850992ae4cace688253bf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8755e881abfcee243462d5daa5b32d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e7a04098f5b165dbeb50969840e68f.png)
您最近一年使用:0次
2016-12-02更新
|
678次组卷
|
5卷引用:2012-2013学年吉林省吉林一中高二4月月考文科数学试卷
(已下线)2012-2013学年吉林省吉林一中高二4月月考文科数学试卷(已下线)2012届浙江省部分重点中学高三下学期2月联考理科数学2016届浙江省慈溪中学高三上学期期中理科数学试卷【全国校级联考】浙江省宁波市六校2017-2018学年高二下学期期末联考数学试题2019年浙江省新高考仿真演练卷(三)
12-13高三上·吉林·期末
3 . 已知数列
的前
项和
,且
.
(1)求数列
的通项公式;
(2)已知定理:“若函数
在区间
上是凹函数,
,且
存在,则有
”.若且函数
在
上是凹函数,试判断
与
的大小;
(3)求证:
.
![](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/ca409be386d331e96ee1bf9e387f7b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340e5f81421c5214622a42a1f6ae1003.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)已知定理:“若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e122d4233c67cc9d8ce76e38404f582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44a1ae60bd9a4901070ad5aed0766a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb1bdde2f1e8604196cb7dc8a1acd944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95931effbd59c43e8ed1ea09962b84f.png)
(3)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24f469527f0a1faf217882d0d060b3e7.png)
您最近一年使用:0次