• 2022-07-29
    数列3,7,11,15,19,…的通项公式是( )
    A: [img=76x18]1802ec8a9574a90.jpg[/img]
    B: [img=76x18]1802ec8aa709a9b.jpg[/img]
    C: [img=76x18]1802ec8ab58db6a.jpg[/img]
    D: [img=52x18]1802ec8ac3dacd5.jpg[/img]