Recent content by slippers

  1. S

    Undergrad Struggling to show that this series converges.

    Is it not sufficient to note that r^a/(r+1)^a is a null sequence, so anything it is multiplied by will also be a null sequence? (null x bounded = null...etc).
  2. S

    Undergrad Bounded Derivative of f(x) = xCos(x) for 0<= x<=5

    Ahhh, something just moved in my brain... Thanks very much! :D
  3. S

    Undergrad Bounded Derivative of f(x) = xCos(x) for 0<= x<=5

    Hi all, my first post so go easy on me! Doing some revision and have been tripped up on a really simple question! Where f(x) = xCos(x) Show the bound f '(x)<=6 is valid for 0<= x<=5 I suspect this is an easy solution using the intermediate value theorem! Thanks in advance, slippers