(adsbygoogle = window.adsbygoogle || []).push({}); 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 :)

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# Help with abstract algebra

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