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}
未知类型:{'options': ['16', ' [img=18x33]17e43b1a12970d5.jpg[/img]', ' 18', ' [img=18x33]17e43d49c49476f.jpg[/img]'], 'type': 102}
举一反三
- 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}
- 设f(x)是连续函数,且[img=115x41]17e441a9264b227.jpg[/img],则f(7)=. 未知类型:{'options': ['0', ' [img=11x33]17e4362bee12768.jpg[/img]', ' [img=18x33]17e43d9ae21f42d.jpg[/img]', ' 1'], '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}
- 设随机变量(X,Y)的联合密度函数为f(x,y)=[img=11x33]17e0a705ae7bd6c.jpg[/img]xy,0<;x<;y<;2,则)P(X<;1,Y<;2)= 未知类型:{'options': ['', ' [img=21x34]17e0abc58cd38f8.jpg[/img]', ' [img=18x33]17e0abc597504cc.jpg[/img]', ' [img=11x33]17e0a705ae7bd6c.jpg[/img]'], 'type': 102}