Determine all possible pair(s) of nonnegative integers (P, Q), that satisfy this equation:

                                         2^P = 3^Q + 5

(In reply to almost proof ;-) by Daniel)

.."......now since ln(3)/ln(2) is irrational
we can't have p/q=ln(3)/ln(2) with p,q integers..... "    

NOT TRUE :

 e.g.     a=4*log3  irrational

            b=2*log3  irrational     

a/b= 4/2   rational      

Dixi

Posted by Ady TZIDON on 2008-10-05 05:24:35