• 2022-06-03
    求函数[img=102x46]17da6537bc771a0.png[/img]的导数; ( )
    A: -x/(a^2 - x^2)^(3/2)
    B: x/(a^2 - x^2)^(3/2)
    C: (a^2 - x^2)^(3/2)/x
    D: (a^2 - x^2)^(1/2)