<p>计算对弧长的曲线积分<img src="https://learnfile.20230611.cn/learnAppQuestion/09/2f/092f5a922739282ad2903cd55302f203.jpg" style="width: 100%;height: auto;"> ，其中C是曲线<img src="https://learnfile.20230611.cn/learnAppQuestion/77/7e/777e8c76710b855a2da996465ddf4d5 - 高等数学（工本）(00023)