Results 1 to 3 of 3

Math Help - Linear Algebra Proof

  1. September 1st 2009, 08:26 AM #1
    eg37se
    eg37se is offline
    Newbie
    Joined
    Mar 2009
    Posts
    23

    Linear Algebra Proof

    Question:
    Suppose a and b are real numbers, not both 0. Find real numbers c and d such that 1/(a+bi)=c+di. (i as in the imaginary number.)


    So far I have reworked the equation into

    1=ac+adi+cbi-bd.

    Not sure where to go from here. Just need a little push in the right direction. THANKS!!!
    Follow Math Help Forum on Facebook and Google+
  2. September 1st 2009, 08:32 AM #2
    Plato
    Plato is offline
    MHF Contributor
    Joined
    Aug 2006
    Posts
    19,095
    Thanks
    1838
    Awards
    1
    MHF Donor
    Quote Originally Posted by eg37se View Post
    Question:
    Suppose a and b are real numbers, not both 0. Find real numbers c and d such that 1/(a+bi)=c+di. (i as in the imaginary number
    \frac{1}<br /> {{x + iy}} = \frac{{x - iy}}<br /> {{x^2 + y^2 }}
    Follow Math Help Forum on Facebook and Google+
  3. September 1st 2009, 08:39 AM #3
    eg37se
    eg37se is offline
    Newbie
    Joined
    Mar 2009
    Posts
    23
    Thanks!!!.
    Follow Math Help Forum on Facebook and Google+
« regular representations | Cayley's theorem together with isomorphic groups »

Similar Math Help Forum Discussions

  1. Linear algebra proof
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: March 30th 2010, 04:24 PM
  2. Help with Linear Algebra proof
    Posted in the Advanced Algebra Forum
    Replies: 1
    Last Post: July 19th 2009, 02:54 PM
  3. linear algebra proof help!
    Posted in the Advanced Algebra Forum
    Replies: 2
    Last Post: April 7th 2009, 10:04 AM
  4. Linear Algebra proof
    Posted in the Advanced Algebra Forum
    Replies: 6
    Last Post: November 15th 2007, 06:25 AM
  5. linear Algebra Proof
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: October 18th 2006, 01:33 PM

Search Tags


/mathhelpforum @mathhelpforum