• 2022-06-09
    将极坐标系下的二次积分[img=282x54]18031ae5375f59e.png[/img]化为直角坐标系下的二次积分,则[img=26x19]18031ae53fcc62c.png[/img] ( )
    A: [img=203x58]18031ae549aeceb.png[/img]
    B: [img=191x55]18031ae554430e0.png[/img]
    C: [img=194x58]18031ae55e69ad1.png[/img]
    D: [img=201x56]18031ae5699ac28.png[/img]
  • 举一反三