1. Apr 4, 2010 #1

   Lord Dark

   

   1. The problem statement, all variables and given/known data
   Good evening everyone,, I have the following problem:
   
   
   
   3. The attempt at a solution
   
   disregarding the digit ,, he's giving me P(x) and want P(A) but A is a matrix ,, should I get the determinant of A then apply it in the equation ?? or it has some idea I need to know ??

    

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   Lord Dark, Apr 4, 2010
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3. Apr 4, 2010 #2

   Office_Shredder

   

   Staff Emeritus

   Science Advisor

   Gold Member

   You know how to multiply matrices
   
   You know how to add matrices
   
   I dare say maybe you can just plug in A directly and get an answer. This is pretty common, giving a polynomial where you think the input is supposed to be a number, but then you plug in matrices instead to see what you get

    

   Office_Shredder, Apr 4, 2010
4. Apr 4, 2010 #3

   Mark44

   

   Insights Author

   Staff: Mentor

   And since P(A) involves matrices, not numbers, be sure to use I in place of 1 in your formula for P(A).

    

   Mark44, Apr 4, 2010
5. Apr 4, 2010 #4

   Lord Dark

   

   aha, got it ... Really it's very easy ,, I feel stupid :shy:
   
   Thanks very much guys

    

   Lord Dark, Apr 4, 2010

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