<p>已知曲线<img src="https://file.gaojiufeng.cn/learnAppQuestion/69/43/69436373a1246031ff901d90de4cecc6.jpg" style="width: 100%;height: auto;">在点<img src="https://file.gaojiufeng.cn/learnAppQuestion/34/f4/34f4612dd9c5bb9d4ff5d47e90262c71.jpg" style="width: 100%;height: auto;">处的切线过点<img src="https://file.gaojiufeng.cn/learnAppQuestion/f7/84/f78470f78317ce91b8426c45ce94fc1c.jpg" style="width: 100%;height: auto;">则<img src="https://file.gaojiufeng.cn/learnAppQuestion/59/b1/59b19a05ed973c0d12bc6b0c9d5c8d71.jpg" style="width: 100%;height: auto;">____