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!

Find poly F(X) with lowest degree with ratio coeffs and 2 given zeros

  1. Nov 6, 2008 #1
    1. The problem statement, all variables and given/known data
    Find a polynomial function of lowest degree with rational coefficients and 2 and 3-2i as some of its zeros. Multiply the factors to make sure it has rational coefficients.

    3. The attempt at a solution

    zeros=2, 3-2i, 3+2i

    I am not sure how write out the factors?

    (x-2)(x-3+2i)(x-3-2i) is this correct?
     
  2. jcsd
  3. Nov 6, 2008 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Yes! :biggrin:

    hmm :rolleyes: … it said multiply the factors … but why when they're obviously rational … hmm …

    are you sure the question isn't "2 and 3 - √2i"?
     
  4. Nov 6, 2008 #3
    I am not to sure. nope it is for sure 2 and 3-2i. maybe its supposed to just be an encouragement to always check ones answers.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Find poly F(X) with lowest degree with ratio coeffs and 2 given zeros
  1. Finding f(x) given limit (Replies: 35)

Loading...