设[img=36x29]1803b5ab78931ba.png[/img]在[img=88x29]1803b5ab800810e.png[/img]上为正值的连续函数, 则[img=36x50]1803b5ab879bb66.png[/img]在[img=88x29]1803b5ab800810e.png[/img]上也为正值的连续函数.
举一反三
- 设[img=36x29]18032cd09a50396.png[/img]在[img=88x29]18032cd0a226477.png[/img]上为正值的连续函数, 则[img=36x50]18032cd0aa8da8f.png[/img]在[img=88x29]18032cd0a226477.png[/img]上也为正值的连续函数.
- 设[img=36x29]1803c911e57a6e6.png[/img]在[img=88x29]1803c911ee389f7.png[/img]上连续, 则[img=36x29]1803c911e57a6e6.png[/img]在[img=88x29]1803c911ee389f7.png[/img]有界.
- 设[img=36x29]18032cd0b8c4111.png[/img]在[img=88x29]18032cd0c0e7317.png[/img]上连续, 则[img=36x29]18032cd0b8c4111.png[/img]在[img=88x29]18032cd0c0e7317.png[/img]有界.
- 设[img=36x29]1803b5aadb71780.png[/img]在[img=88x29]1803b5aae39f30f.png[/img]上连续, 则[img=36x29]1803b5aadb71780.png[/img]在[img=88x29]1803b5aae39f30f.png[/img]有界.
- 设f(x)为连续函数，且 [img=217x49]18034a50d8b1b92.png[/img] 则[img=70x25]18034a50e196c62.png[/img] A: 5 B: 4 C: 0 D: -5