1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I need help wih prove (sqrt(2))^3 is irrational number

  1. Sep 28, 2008 #1
    hi well i'm having truple in proving this (sqrt(2))^3 is irrational number!!
     
  2. jcsd
  3. Sep 28, 2008 #2

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    If you think this can be proved by computer science, I can see why!

    It should be very simple to prove that if a is a rational number, then so it a3. Do you know Euclid's proof that [itex]\sqrt{2}[/itex] is irrational?
     
  4. Sep 29, 2008 #3
    well i need to prove the whole statement step by step how u proved it is irrational!
     
  5. Sep 30, 2008 #4

    zyh

    User Avatar

  6. Oct 12, 2008 #5
    use Irrational_check(sqrt(2)^3)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: I need help wih prove (sqrt(2))^3 is irrational number
  1. ARGHHH! I need help. (Replies: 23)

  2. I need help (Replies: 1)

  3. I need your help (Replies: 1)

Loading...