• 2022-06-09
    f(x)在x处可导,a,b为常数,则[img=27x32]1802fa0c04c2042.png[/img][img=234x25]1802fa0c10631ae.png[/img]=
    A: [img=93x26]1802fa0c195a7ad.png[/img]
    B: [img=93x26]1802fa0c2233a71.png[/img]
    C: [img=39x26]1802fa0c2adc024.png[/img]
    D: f(x)
  • 举一反三