y=3x的单调区间为:
未知类型:{'options': ['(-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递增区间', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],0)为单调递减区间', ' (0,+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递增区间', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递减区间'], 'type': 102}
未知类型:{'options': ['(-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递增区间', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],0)为单调递减区间', ' (0,+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递增区间', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])为单调递减区间'], 'type': 102}
举一反三
- 函数[img=81x34]17e0b5b33a6de53.jpg[/img]的单调增加区间为() 未知类型:{'options': ['(-[img=14x11]17e0a6a9a5d0661.jpg[/img],1]', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],0],[1,+[img=14x11]17e0a6a9a5d0661.jpg[/img])', ' [1,+[img=14x11]17e0a6a9a5d0661.jpg[/img])', ' [0,1]'], 'type': 102}
- 函数[img=154x20]17e0b5b347f829d.jpg[/img]的单调减少区间为() 未知类型:{'options': ['[-2,1]', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],-1],[2,+[img=14x11]17e0a6a9a5d0661.jpg[/img])', ' [-1,2]', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],-2],[1,+[img=14x11]17e0a6a9a5d0661.jpg[/img])'], 'type': 102}
- 函数[img=133x20]17e0b5b5052c2e1.jpg[/img]单调增加区间为() 未知类型:{'options': ['(-[img=14x11]17e0a6a9a5d0661.jpg[/img],-1],[3,+[img=14x11]17e0a6a9a5d0661.jpg[/img])', ' [-1,3]', ' [1,3]', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],3]'], 'type': 102}
- 设f(x)在(-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])上连续,a和b是任意实数,且a<;b,则f(x)必有界的区间是 未知类型:{'options': ['[a,b)', ' (a,b]', ' [a,b]', ' (-[img=14x11]17e0a6a9a5d0661.jpg[/img],+[img=14x11]17e0a6a9a5d0661.jpg[/img])'], 'type': 102}
- 曲线[img=118x34]17e0aa5d076ac3c.jpg[/img]的凸区间是() 未知类型:{'options': ['(-[img=14x11]17e0a6a9a5d0661.jpg[/img],-1)', ' (-1,0)', ' (0,1)', ' (1,+[img=14x11]17e0a6a9a5d0661.jpg[/img])'], 'type': 102}