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Find all pairs of positive Integers(A,B)such that A^B-B^A=3 Find all pairs of positive Integers(A,B)such that A^B-B^A=3
THE PERFECT REASON IS GIVENYOU COULD TRY YOURSELFthe number is a=4 and b=1by taking the cases that a^B is 4 and b^a is 1.hence by taking the cases whatever umber we take should have a proper square root.by taking all the cases only one pair of numbers fits the criteria.4^1-1^=3hence we get only one pair that(a;b)=(4;1)
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