• 2022-06-26
    关于级数[img=303x48]1802dc6e24b7d39.png[/img],下列叙述正确的是
    A: [img=50x19]1802dc6e2ca1ec9.png[/img]时收敛,[img=77x19]1802dc6e34ad63b.png[/img]时发散;
    B: [img=50x19]1802dc6e3d178e6.png[/img]时收敛;
    C: [img=50x19]1802dc6e462ed15.png[/img]时收敛,[img=50x19]1802dc6e2ca1ec9.png[/img]时发散;
    D: [img=50x19]1802dc6e3d178e6.png[/img]时发散.
  • 举一反三