已知f(0)=1,f(2)=4,[img=58x21]17e43f61e0457f1.jpg[/img],则[img=92x39]17e43f61e957dee.jpg[/img]=()
未知类型:{'options': ['', ' [img=11x33]17e43b6c6dd4aed.jpg[/img]', ' [img=11x33]17e437126a9c40e.jpg[/img]', ' 1'], 'type': 102}
未知类型:{'options': ['', ' [img=11x33]17e43b6c6dd4aed.jpg[/img]', ' [img=11x33]17e437126a9c40e.jpg[/img]', ' 1'], 'type': 102}
举一反三
- 已知f(0)=1,f(2)=4,[img=58x21]17e0ac05e27054b.jpg[/img],则[img=92x39]17e0ac05ec498c0.jpg[/img]=() 未知类型:{'options': ['', ' [img=11x33]17e0ab10e2833c7.jpg[/img]', ' [img=11x33]17e0a912b48a7ec.jpg[/img]', ' 1'], 'type': 102}
- 已知函数f(x)=[img=45x38]17da5d07942c7aa.jpg[/img],则f(-2)= 未知类型:{'options': ['', ' [img=11x15]17da3e634dee8f7.jpg[/img][img=11x33]17da428a6bf5c2b.jpg[/img]', ' 0', ' 不存在'], '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}
- 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}
- 设f(x)=ksinx-2x,且[img=75x33]17da625a3bdfe28.jpg[/img],则k=() 未知类型:{'options': ['1', ' [img=11x33]17da3b8d434d8d7.jpg[/img]', ' [img=25x34]17da40b126a2b85.jpg[/img]', ' 0'], 'type': 102}