1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: CONSTRUCTIONS of a+b,ab,a/b,a-b, a^(1/2)

  1. Apr 7, 2006 #1
    i'm suppose to show how to construct each of the following:

    a+b,ab,a/b,a-b, a^(1/2) .... a,b >0

    This has to do with constructible numbers using the ruler and compass.

    So i know that a number is constructible if it the distance (or negative distance) between two constructible points, but I suppose I don't really need such a fact. hmm... SO how do i start this? Can I just look at points a, and b as vectors. I'm sure if I get help with a+b, I can start working on the rest. thanks..
  2. jcsd
  3. Apr 7, 2006 #2
    sorry..i posted in the wrong section. I will repost in another...CLOSED
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook