Help with abstract algebra

  1. Help with abstract algebra!!

    Here is my quetion.
    What is the order of the set of all 2x2 matricies (such that its entries a,b,c,d are between 0 and p-1), and whose determinant is
    congruent to 1 modulo p ?
    => Order of SL(2,Fp)
    thanks :)
    Last edited: Oct 16, 2005
  2. jcsd
  3. Tom Mattson

    Tom Mattson 5,526
    Staff Emeritus
    Science Advisor
    Gold Member

    According to the section entitled "Homework Help" in the Physics Forums Global Guidelines which you agreed to:

    So whatcha got?
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