若[img=13x14]17e0a6762041d57.jpg[/img]为极值点且[img=38x21]17e0a7fa724e37d.jpg[/img]存在,则[img=64x21]17e0a6804ec8a49.jpg[/img]
举一反三
- 若[img=13x14]17e0a6762041d57.jpg[/img]为极值点,则[img=64x21]17e0a6804ec8a49.jpg[/img]
- 若[img=64x21]17e0a6804ec8a49.jpg[/img],则[img=13x14]17e0a6762041d57.jpg[/img]为极值点
- 函数f(x)在点[img=13x14]17e0a6762041d57.jpg[/img]处取得极值,则必有() 未知类型:{'options': ['', ' [img=65x22]17e0c05d5b4a774.jpg[/img]', ' [img=143x22]17e0c05d67ce89d.jpg[/img]', ' [img=64x21]17e0a6804ec8a49.jpg[/img]或[img=38x21]17e0a7fa724e37d.jpg[/img]不存在'], 'type': 102}
- 函数y=f(x)在点[img=13x14]17e0a6762041d57.jpg[/img]处取得极值,则必有(). 未知类型:{'options': ['f′([img=13x14]17e0a6762041d57.jpg[/img])=0', ' f″([img=13x14]17e0a6762041d57.jpg[/img])<;0', ' f′([img=13x14]17e0a6762041d57.jpg[/img])=0或f′([img=13x14]17e0a6762041d57.jpg[/img])不存在', ' f′([img=13x14]17e0a6762041d57.jpg[/img])=0,f″([img=13x14]17e0a6762041d57.jpg[/img])<;0'], 'type': 102}
- 函数f(x)连续且可导,当x<;[img=13x14]17e0a6762041d57.jpg[/img]时,f′(x)<;0;当x>;[img=13x14]17e0a6762041d57.jpg[/img]时,f′(x)>;0,则[img=13x14]17e0a6762041d57.jpg[/img]必为函数f(x)的(). A: 驻点 B: 极大值点 C: 极小值点 D: 条件不足,无法确定