Solve: log (a / b) + log (b / a) = log (a + b)?

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Mamata Mund

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loga -log b + log b - log a = log(a+b). log (a+b)= 0. a+b = 1. either a = 1 or b = 0 or a= 0 and b= 1.
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a+b=1.
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