• 2022-06-30
    利用定积分计算极限 [img=183x43]1803404629b514e.png[/img]
    A: [img=113x51]1803404631df944.png[/img]
    B: = [img=108x51]180340463b184f5.png[/img]
    C: = [img=94x51]1803404642c8366.png[/img]
    D: = [img=108x51]18034046506befb.png[/img]