Results 1 to 3 of 3

Math Help - Complex number equation

  1. #1
    Senior Member
    Joined
    Apr 2010
    Posts
    487

    Complex number equation

    The question:
    Verify (-1 + i)^7 = -8(1 + i) both directly and using the polar form.

    I know how to verify this via polar form, but I'm not sure what they mean by verifying it "directly". Does this mean via binomial expansion? Thanks!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Super Member
    Joined
    Mar 2010
    Posts
    715
    Thanks
    2
    Quote Originally Posted by Glitch View Post
    I know how to verify this via polar form, but I'm not sure what they mean by verifying it "directly".
    By directly, I think they mean by expanding the LHS.
    Does this mean via binomial expansion?
    Your guess is as good as mine.
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Senior Member
    Joined
    Apr 2010
    Posts
    487
    Ok, thanks.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Complex number equation
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: July 8th 2011, 03:38 AM
  2. Complex number equation
    Posted in the Algebra Forum
    Replies: 5
    Last Post: March 12th 2011, 04:58 AM
  3. Complex Number Equation
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: December 5th 2010, 09:36 AM
  4. Complex number equation
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: August 12th 2008, 11:46 PM
  5. Complex number equation
    Posted in the Algebra Forum
    Replies: 1
    Last Post: December 17th 2006, 05:17 AM

Search Tags


/mathhelpforum @mathhelpforum