• 2022-06-30
    求函数[img=106x27]1802db821a588dc.png[/img]的凹凸区间
    A: 凸区间[img=133x43]1802db822321924.png[/img],凹区间[img=42x43]1802db822b21c61.png[/img]
    B: 凹区间[img=133x43]1802db8233f1c7f.png[/img],凸区间[img=42x43]1802db823d68709.png[/img]
    C: 凹区间[img=133x43]1802db822321924.png[/img],凸区间[img=42x43]1802db822b21c61.png[/img]
    D: 凸区间[img=133x43]1802db8233f1c7f.png[/img],凹区间[img=42x43]1802db823d68709.png[/img]
  • 举一反三