解题方法
1 . 已知中心在原点,焦点在
轴上,离心率为
的椭圆过点
.
(1)求椭圆方程;
(2)设不过原点O的直线
,与该椭圆交于P、Q两点,直线OP、OQ的斜率依次为
,满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1754ce56c726b9eea858411cca46b488.png)
(1)求椭圆方程;
(2)设不过原点O的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becdcb8a871e8965853acf0687034c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e8c3611bc5181eccb83e93c19831ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8d7b4bb12628d5ed455d814b8aafa1f.png)
您最近一年使用:0次
2018-10-01更新
|
347次组卷
|
2卷引用:黑龙江省海林市朝鲜族中学人教版高中数学选修1-1同步练习:模块终结测评(一)
2 . 已知函数
.
(1)若函数
的图像在点
处的切线为
,求
,
的值;
(2)求函数
的单调区间;
(3)若
,不等式
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490a1a1da4e03b89d93a55c9969cfe41.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e212cdbfba6610bc55df2c1a737407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169ca104be4129c59b62886518b2270f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3368388525e30cb7179909b03184eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
3 . 已知函数
(a>0且a≠1).
(1)若f(x)为定义域上的增函数,求实数a的取值范围;
(2)令a=e,设函数
,且g(x1)+g(x2)=0,求证:x1+x2≥2+
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c107bc2ee43150b5cb2ebc92e854a66e.png)
(1)若f(x)为定义域上的增函数,求实数a的取值范围;
(2)令a=e,设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9deeec5601c2364c3d5a410edab4168.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
您最近一年使用:0次
2018-10-02更新
|
237次组卷
|
4卷引用:黑龙江省海林市朝鲜族中学人教版高中数学选修2-2同步练习:模块终结测评(一)