Results 1 to 2 of 2

Thread: Find all possible values of det(A)

  1. February 19th 2010, 12:43 PM #1
    DarK
    DarK is offline
    Junior Member
    Joined
    Feb 2010
    Posts
    48

    Find all possible values of det(A)

    Any help is appreciated!
    Attached Thumbnails Attached Thumbnails Find all possible values of det(A)-capture6.jpg  
    Follow Math Help Forum on Facebook and Google+
  2. February 19th 2010, 01:40 PM #2
    tonio
    tonio is offline
    Banned
    Joined
    Oct 2009
    Posts
    4,261
    Quote Originally Posted by DarK View Post
    Any help is appreciated!

    I+A^2=0\Longrightarrow A^2=-I\Longrightarrow \det A^2=\det(-I)=1 (why?), and since \det A^2 = \left(\det A\right)^2 then \det A= ...

    Tonio
    Follow Math Help Forum on Facebook and Google+
« Finding a Hamel base. | Find solutions of linear system »

Similar Math Help Forum Discussions

  1. How do I find the values of....
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: January 1st 2011, 05:03 AM
  2. For the limit below, find values of δ that correspond to the ε values.
    Posted in the Calculus Forum
    Replies: 2
    Last Post: January 28th 2010, 01:39 AM
  3. find values
    Posted in the Algebra Forum
    Replies: 5
    Last Post: September 19th 2009, 08:33 AM
  4. Find the values of F1 and F2
    Posted in the Differential Geometry Forum
    Replies: 4
    Last Post: August 19th 2009, 10:20 AM
  5. Find values of variable for which trigonometric expression takes only +ve values?
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: May 24th 2009, 05:16 AM

Search Tags


/mathhelpforum @mathhelpforum