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bd1177 · Apr 25, 2012, 09:52 AM

Is the above formatted equation true or false when dealing with logarithms.

ebaines · Apr 25, 2012, 09:58 AM

It appears what you're trying to ask is whether this is true:

$<br /> ln(x+3) - ln(2x) = \frac {ln(x+3)}{ln(2x)}<br />$

No these are not equaivalent. But the following IS true:

$<br /> ln(x+3) - ln(2x) = ln (\frac {x+3}{2x} )<br />$

The principals to remember are: ln(a x b ) = ln(a) + ln(b), and ln(a/b) = ln(a) - ln(b).