Difference between revisions of "1987 OIM Problems/Problem 3"

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== Problem ==
 
== Problem ==
 
Prove that if <math>m</math>, <math>n</math>, and <math>r</math> are non-zero positive integers, and
 
Prove that if <math>m</math>, <math>n</math>, and <math>r</math> are non-zero positive integers, and
<cmath>1+m+n\sqrt{3}=\[2+\sqrt{3}]^{2r-1}</cmath>
+
<cmath>1+m+n\sqrt{3}=[2+\sqrt{3}]^{2r-1}</cmath>
 
then <math>m</math> is a perfect square.
 
then <math>m</math> is a perfect square.
 +
 +
~translated into English by Tomas Diaz. ~orders@tomasdiaz.com
  
 
== Solution ==
 
== Solution ==
 
{{solution}}
 
{{solution}}
 +
 +
== See also ==
 +
https://www.oma.org.ar/enunciados/ibe2.htm

Latest revision as of 12:27, 13 December 2023

Problem

Prove that if $m$, $n$, and $r$ are non-zero positive integers, and \[1+m+n\sqrt{3}=[2+\sqrt{3}]^{2r-1}\] then $m$ is a perfect square.

~translated into English by Tomas Diaz. ~orders@tomasdiaz.com

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.

See also

https://www.oma.org.ar/enunciados/ibe2.htm