Prove that: log 2 + 2 log 5 - log 3 - 2 log 7 = log 50/147.

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answered Dec 8, 2018 by Amresh Pro (116 points)
LHS= log2+2log5-log3-2log7
        = log2+log5²-log3-log7²
        = log2*5²-log3*7²         (loga +logb=logab)
        = log50/147                   (loga-logb=loga/b)
        = RHS
HENCE, Proved!

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