• 2022-07-01
    设y=(4x+4)/x^2-2,则曲线在拐点处的切线方程为()
    A: y+26/9=-2(x+1)/27
    B: y+26/9=-4(x+1)/27
    C: y+26/9=-4(x+3)/27
    D: y+26/9=-2(x+3)/27