<p>已知函数<img src="https://file.gaojiufeng.cn/learnAppQuestion/7d/d3/7dd327837aefdd3de1376b79bebd3057.jpg" style="width: 100%;height: auto;">在点<img src="https://file.gaojiufeng.cn/learnAppQuestion/3f/18/3f18e8ad0b19dcb5d6338e45c5406873.jpg" style="width: 100%;height: auto;">处连续，求常数<img src="https://file.gaojiufeng.cn/learnAppQuestion/c0/9b/c09b18f2bacad79295eb7c44a8cf90ef.jpg" style="width: 100%;height: auto;">的值。</p>