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Question-31594




Question Number 31594 by Nayon.Sm last updated on 11/Mar/18
Answered by Rasheed.Sindhi last updated on 11/Mar/18
a=0 ∣ b=0 ; No other integral solution.  −.−.−.−.−.−.−  If a^2 +b^2 =c^2  then there exist integers  m & n such that c=m^2 +n^2  ,{a,b}={m^2 -n^2 ,2mn}  So we have m^2 +n^2 =c=2179            n^2 =2179−m^2    I-e  2179−m^2   is perfect square of an  integer.              m^2 ≤2179⇒m≤46  m∈{0,±1,±2,±3,...,±46}  For no value of m  2179−m^2  is perfect  square.
a=0b=0;Nootherintegralsolution.......Ifa2+b2=c2thenthereexistintegersm&nsuchthatc=m2+n2,{a,b}={m2n2,2mn}Sowehavem2+n2=c=2179n2=2179m2Ie2179m2isperfectsquareofaninteger.m22179m46m{0,±1,±2,±3,,±46}Fornovalueofm2179m2isperfectsquare.

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