曲线[img=91x47]17e0c2705fb18a0.jpg[/img]对应于[img=35x33]17e0c2706c11a2f.jpg[/img]处点的曲率为
未知类型:{'options': ['16', ' [img=18x33]17e0aa63d81d5ba.jpg[/img]', ' 18', ' [img=18x33]17e0b36fd651a4a.jpg[/img]'], 'type': 102}
未知类型:{'options': ['16', ' [img=18x33]17e0aa63d81d5ba.jpg[/img]', ' 18', ' [img=18x33]17e0b36fd651a4a.jpg[/img]'], 'type': 102}
举一反三
- 曲线[img=91x47]17e43f6bc82d0ff.jpg[/img]对应于[img=35x33]17e43f6bd0c8210.jpg[/img]处点的曲率为 未知类型:{'options': ['16', ' [img=18x33]17e43b1a12970d5.jpg[/img]', ' 18', ' [img=18x33]17e43d49c49476f.jpg[/img]'], 'type': 102}
- 求曲线[img=77x33]17e441136712e5e.jpg[/img]介于x=0与x=3之间的弧长 未知类型:{'options': ['8', ' 5', ' [img=18x33]17e43a6a3c19298.jpg[/img]', ' [img=18x33]17e43b749639457.jpg[/img]'], 'type': 102}
- 求曲线[img=77x33]17e0b6dff212e46.jpg[/img]介于x=0与x=3之间的弧长 未知类型:{'options': ['8', ' 5', ' [img=18x33]17e0b6e0030ab85.jpg[/img]', ' [img=18x33]17e0b31929119cc.jpg[/img]'], 'type': 102}
- 函数f(x)=[img=40x76]17e0bf8d391c13e.png[/img]的不连续点为( ) 未知类型:{'options': ['x=0', ' x=[img=43x39]17e0bf8d4513730.png[/img](k=0,±1,±2,…)', ' x=0和x=2kπ(k=0,±1,±2,…)', ' x=0和x=[img=43x39]17e0bf8d4513730.png[/img](k=0,±1,±2,…)'], 'type': 102}
- X服从[0,2]上的均匀分布,则DX=( ). 未知类型:{'options': ['', ' [img=11x33]17e0a68c101c165.jpg[/img]', ' [img=11x33]17e0a7058f08913.jpg[/img]', ' [img=18x33]17e0ac49634d27a.jpg[/img]'], 'type': 102}