hey guys i need help on a question:

If log 5 = m and log 7 = n, find log (35/10) in terms of m and n.

Thanks

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- Jan 17th 2006, 05:51 PMNumbnut247Logarithm Question
hey guys i need help on a question:

If log 5 = m and log 7 = n, find log (35/10) in terms of m and n.

Thanks - Jan 17th 2006, 06:24 PMThePerfectHackerQuote:

Originally Posted by**Numbnut247**

Then

$\displaystyle \log (35/10)=\log (7/2)=\log 7-\log 2=n-m$.

Q.E.D. - Jan 18th 2006, 09:39 AMSkyWatcheran other solutionQuote:

Originally Posted by**Numbnut247**

and if log (10)=1

Then the awnser to your question would be m+ n-1

But i always mix up whith all those formula

check it whith a calculus machine if youve got one!

by!