若[img=13x14]17e0a6762041d57.jpg[/img]为极值点，则[img=64x21]17e0a6804ec8a49.jpg[/img]
举一反三
- 若[img=64x21]17e0a6804ec8a49.jpg[/img]，则[img=13x14]17e0a6762041d57.jpg[/img]为极值点
- 若[img=13x14]17e0a6762041d57.jpg[/img]为极值点且[img=38x21]17e0a7fa724e37d.jpg[/img]存在，则[img=64x21]17e0a6804ec8a49.jpg[/img]
- 若[img=64x21]17e0a6804ec8a49.jpg[/img]，则点[img=13x14]17e0a6762041d57.jpg[/img]是函数[img=28x19]17e0a67617718b6.jpg[/img]的极值点
- 若点[img=13x14]17e0a6762041d57.jpg[/img]是函数[img=28x19]17e0a67617718b6.jpg[/img]的极值点，则必有[img=64x21]17e0a6804ec8a49.jpg[/img]
- 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}