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forum.virtualchallengemeets.com • View topic - Logarithms

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Logarithms

Eighty problems in ten minutes. What's so hard about that?
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Logarithms

Postby murali0298 » Sun Apr 08, 2012 5:48 pm

This is like the dumbest question ever!!!
log(base 3)6*log(base 6)9 = ?
How do you even start off with this???
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Re: Logarithms

Postby nsguy1350 » Sun Apr 08, 2012 5:56 pm

[unparseable or potentially dangerous latex formula], where x is any base. I prefer base e, to get [unparseable or potentially dangerous latex formula]

Using this, you can simplify your expression to:
[unparseable or potentially dangerous latex formula].
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Re: Logarithms

Postby sxk1693 » Sun Apr 08, 2012 10:18 pm

So do you just have to figure out what to do in twelve seconds. Are there any other patterns with logs that we will need to know.
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Re: Logarithms

Postby 007math » Sun Apr 08, 2012 11:00 pm

Its a log/natural log rule of [unparseable or potentially dangerous latex formula]. Basically, like multiplying fractions (it really is as explained in the post above) the base and the *main* number can cancel.
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