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Math Help - question and trial

  1. #1
    Junior Member
    Joined
    Jul 2010
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    25

    question and trial

    <br />
\begin{array}{l}<br />
 prove{\rm  that} \\ <br />
 {\rm gcd(a,b)} \le {\rm a - b                  , a} \succ {\rm b} \\ <br />
 {\rm solution:} \\ <br />
 {\rm note}\;{\rm that}\;{\rm gcd(a,b) = gcd(a, - b)} \\ <br />
  \Rightarrow {\rm  d\backslash a , d\backslash  - b} \Rightarrow {\rm  d\backslash a +  - b} \\ <br />
 {\rm this}\,\;{\rm means}\;{\rm that}\;{\rm d} \le {\rm a - b } \Rightarrow {\rm gcd(a,b)} \le {\rm a - b }{\rm .} \\ <br />
  \\ <br />
 \end{array}
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  2. #2
    MHF Contributor Swlabr's Avatar
    Joined
    May 2009
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    Is there a question here, or are you just wanting someone to look over your answer? It looks good to me...
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