• 2022-07-27
    函数f(x)是一个以4为周期函数, 且[img=201x51]1803856888e46d7.png[/img], [img=253x62]18038568948ab14.png[/img]是f(x)的傅里叶级数,则系数[img=16x17]180385689d681e9.png[/img]等于
    A: [img=43x43]18038568a55bdbd.png[/img]
    B: [img=27x43]18038568ad18c11.png[/img]
    C: [img=43x43]18038568b517331.png[/img]
    D: [img=27x43]18038568bdaef65.png[/img]
    E: [img=36x43]18038568c76e3ad.png[/img]
    F: [img=20x43]18038568cfb8256.png[/img]
    G: [img=36x43]18038568d6b5a80.png[/img]
    H: [img=9x18]18038568e028db2.png[/img]
  • 举一反三