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SOLUTION TO SPECIAL DIOPHANTINE EQUATIONS USING THE REMAINDER THEOREM



                     ast  theorem  for   = 3,  First,consider  the   the Fermat’s last Theorem for any odd prime
                     equation.                                          where 2 + 1  prime [3] and  2 + 1 is not a
                                                                       prime.
                      3
                           3
                                      − 2. 3 ℎ = 0         (1)
                      − ℎ − 3 3−1 3      
                                                                       2.1 New Proof of Remainder Theorem
                       Which  is  related  to  the  Farmat’s  last
                   theorem for  = 3, where  , ℎ,  and 3 are co-       Remainder theorem is useful to evaluate
                   prime integers when  ≥ 3 and also,                the polynomials ()which can be defined as
                                                                       in the following.
                      
                                      − 2. 3 ℎ = 0         (2)
                           
                      − ℎ − 3 −1 3     
                                                                                   
                           Where , ℎ,   and  p  are  co-prime      () =   +   −1  +   −2
                                                                                0
                                                                                                   2
                                                                                         1
                     integers also studied for integer solutions. In                  +   −3  + ⋯ +  −1  1
                                                                                         3
                     addition we consider the general equation                        + 
                                                                                         
                                      − 2 ℎ = 0       (3)
                           
                      
                      − ℎ −  −1    

                         Which  is  related  to  Farmat’s  last             Now,       if     ( − ) is   factor
                     theorem for odd prime  [ 3 ]. Where 2 + 1 is   of (), then  () = 0.  In  studying  above
                     also a prime                                      Diophantine equations =  substitution may
                         And the equation                              be  problematic  since  numbers  involved  in
                      − ℎ −  − 2 ℎ = 0                    (4)     equations  are  co-prime.  Therefore  the
                                 
                                       
                       
                            
                                                                       following  proof  of  the  remainder  theorem
                         In  case  of  (4)  above  Diophantine
                     equations,  the  Remainder  theorem  is  to  be   leads to the calculation without substituting
                                                                        = .
                     applied where 2 + 1   is not a prime. In this
                                                                                   
                     research,  using  the  Remainder  Theorem  it     () =   +   −1  +   −2
                                                                                         1
                                                                                0
                                                                                                   2
                     will  be  shown  that  the  above  equations                     +   −3  + ⋯ +  −1  1
                                                                                         3
                     cannot  have  solutions  satisfying  the  given                  + 
                                                                                         
                     restrictions. The proof of remainder theorem
                     is briefly discussed in the following.            () =  (( − ) + ) 
                                                                                 0
                         Let () is a polynomial of  and if   −                +  (( − ) + ) −1  +  2
                                                                                         1
                     ,  where    is  a  constant,  and  let  R  be  the           +  (( − ) + ) −3  + ⋯
                                                                                         3
                                                                                                           1
                     remainder when   () is divided by   − .                  +  −1 (( − ) + ) + 
                                                                                                                

                     Then we can write
                                                                            Using  Binomial  Expansion,  We  can
                     () = ( − )() +            (5)       write
                         It is obvious that () = . In obtaining     () = ( − )() +                          (6)
                      we have substituted  =  in the equation
                     (5).  This  is  true  for  all  constant  .  But  in   Therefore, the Remainder of ()  when
                     case  of  Diophantine  equations,  we  have  to   it is divided by  ( − ) is given by
                     take into account  that the constant numbers       = () =   +   −1  + ⋯ +   
                                                                                      
                                                                                           1
                     also  divided  into  groups  using  the  fact  co-             0  +  (2.3)        −1
                     prime or not as we discuss in the under next                        
                     topic.                                                 In  this  proof,  we  have  shown  that  the
                                                                       Remainder  R  can  be  obtained  without
                        2 METHODOLOGY AND RESULT                       substituting  =   in  the  equation.  If    we
                                                                       could  not  substitute   =   for  remainder
                         Under  this  topic,first  we  prove  the
                     remainder  theorem  using  the  binomial          theorem this method will helps to solve the
                     expansion.  After  proving  the  Remainder        equation. It is the advantage of this proof.
                     Theorem,It  was  applyed  into  special
                     Diophantine  Equations  which  are  consider      2.2 Application of  Remainder theorem to
                     for this reseaech and show that they lead to          special Diophantine Equations
                     apparent  contradictions.  The  equations,  we         Consider the Diophantine equation
                     consider  in  this  section,  directly  related  to
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