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![[Post New]](/templates/default/images/icon_minipost_new.gif) 25 Nov 2007 18:33:50 IST
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the number of pairs of positive inttegers (x,y) where x and y are prime and x2 - 2y2=1 is
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B.Tech CSE, ISMU |
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25 Nov 2007 19:21:23 IST
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if u put any prime no for x, y^2 comes even
only even prime is 2
so answer is (3,2)
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30 Nov 2007 19:33:25 IST
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Good work @rhd
As can be seen from the equation, x can't be even
Online Math Resources: http://mathresr.blogspot.com/
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