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ytrewqmiswi
 one year ago
if u like math :) ...jst a little fun ques
ytrewqmiswi
 one year ago
if u like math :) ...jst a little fun ques

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ytrewqmiswi
 one year ago
Best ResponseYou've already chosen the best response.12(x+y)=xy \[x \le y\] \[x,y \in \mathbb{N} \] find pairs (x,y)

zzr0ck3r
 one year ago
Best ResponseYou've already chosen the best response.1solve for \(y\) and then note the graph is decreasing on R

ytrewqmiswi
 one year ago
Best ResponseYou've already chosen the best response.1ok this is how i did it  2(x+y)=xy 2x+2y=xy 2x=xy2y 2x=y(x2) 2x/(x2)=y\[\frac{ 4 }{ x2 }+2=y\] y has to be natural so x2 must completely divide 4 and x cannot equal 2 so for x2 to completely divide 4 x can have only 2 values 4 or 3 the corresponding values of y that u get are 4 and 6 respectively so the solutions are (4.4) and (3,6) :)
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