Recent content by lys111

  1. L

    Is f(x) Increasing for Positive x and a in (0,1)?

    Yes, it is. I am sorry about the typing/. f(x)=\frac{(x+2)*(1-a^{x+1})}{1-(x+2)*(1-a)*a^{x+1}-a^{x+2}}
  2. L

    Is f(x) Increasing for Positive x and a in (0,1)?

    I am supposed to show f(x) is increasing in x when x is real and positive. f(x)= [(x+2)*(1-a^(x+1)] / [1-(x+2)*(1-a)*a^(x+1)-a^(x+2)] a is any real in (0,1); x is real and positive I have taken and first derivative of f(x)...