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: Binomial Formula in Matricces

  1. Mar 19, 2012 #1
    1. The problem statement, all variables and given/known data

    I'm sorry this doesnt look too nice but it is supposed to be two matricces.


    |1 a1-b1 a1+b1| |1 a1 b1|
    |1 a2-b2 a2+b2|=2*|1 a2 b2|
    |1 a3-b3 a3+b3| |1 a3 b3|

    without evaluating the determinants.

    2. Relevant equations

    3. The attempt at a solution

    It pretty obviously has got something to do with the 3. binomial formula and the rule that λ*A = λ*every value in the matrix.

    I really don't know where to start on this, since I can't evaluate the determinants.
    I'm pretty sure there is an easy way to do this, but I just can't see it.

    Help is very much appreciated!

    Thank you
  2. jcsd
  3. Mar 19, 2012 #2


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi Crution! Welcome to PF! :smile:

    Do you know any rules for adding one column to another column? :wink:
  4. Mar 20, 2012 #3
    thanks that was enough help :-)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook