1 . 设
.若曲线
上一点
不满足
,则曲线
在点
处的切线方程为
.则曲线
过点
的切线方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/896021fc6c5bd4fc7fb58cc894ff81a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928bbbe3bdcda7bd6af53da4b1ee340d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bbbf52d1f9d61b41bdd4acfc9fac268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b4f86e48e2b0d63c1865c60ed1e4d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d6a72ab261df207cbbc3b58db5c4312.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ede062e00b14e9e1604c8174c59942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
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解题方法
2 . 构造一个二元二次方程组
,使得它的解恰好为
,
,要求
与
的每个方程均要出现
,
两个未知数.答:________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0604bdd3fec9ce305beaeddff93a9ab4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2ff4ec0ee3e05559299506c7ae4900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843a685a9bff097b01ac91935382d3ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94ba1c45c55da8fb125b91b100479e6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c0e96a97f48c9365e7e0a4ca466204.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
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名校
3 . 已知函数
(其中e是自然对数的底数),若在平面直角坐标系xOy中,所有满足
的点
都不在圆C上,则圆C的方程可以是______ (写出满足条件的一个圆的方程即可).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7076c094534f0940c5f03f7d1fdd506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f74fe8b70a97156754d8e878f6607719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
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4 . 已知曲线C的方程是:
,
,
,
,
为直角坐标平面上的四点,其中在曲线C上的点为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335095baa9e0a2873440498cb433c6fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51cbc3789c024db2cf78d2500acad117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205895f6fc11c223d6385d44c018922f.png)
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