how to solve log(a+b)...it may be dumb...sorry its been years since i graduated....thanks?

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how to solve log(a+b)...it may be dumb...sorry its been years since i graduated....thanks?

2006-08-30 08:04:07 · 4 answers · asked by Shalu 1 in Science & Mathematics ➔ Mathematics

4 answers

There is no simplification for log(a+b). Sorry. Logarithms work well with products, quotients and powers, but not sums.

2006-08-30 08:10:47 · answer #1 · answered by mathematician 7 · 1⤊ 0⤋

Add the numerical value of a to the numerical value of b and then push the log (not ln) button on your calculator.

Doug

2006-08-30 08:12:55 · answer #2 · answered by doug_donaghue 7 · 0⤊ 1⤋

find a+b and apply log ,there is nothing alternate

2006-09-03 02:52:57 · answer #3 · answered by pavan kumar 1 · 0⤊ 0⤋

there’s nothing you can do to split up log(x+y).

when looking at it you want to do log(x) + log (y) BUT not so.
By the law of logarithms, log(x) + log (y) = log(x*y)

2006-08-30 08:13:06 · answer #4 · answered by Rach524 2 · 0⤊ 1⤋