Answers

2015-04-02T08:12:23+05:30
It should be loga - logb, not loga(-logb),
loga - logb = loga + (-logb)= loga+ (log(b ^ -1)) = loga + (log (1/b))
applying property loga +logb = log(ab)
log(a-b) = log (axb^ -1) = log(a/b)
then comparing, 
a-b = a/b
a(1-1/b) = b
then we get, a = b^2/b-1

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