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What are 2/3 properties of logarithms examples and their property and what is the...

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monique06 | Valedictorian

Posted May 31, 2013 at 2:35 PM via web

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What are 2/3 properties of logarithms examples and their property and what is the significance of using those properties?

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crmhaske | College Teacher | (Level 3) Associate Educator

Posted May 31, 2013 at 2:48 PM (Answer #1)

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Using the properties of logarithms makes solving for logarithmic expressions possible, hence their importance.

The most important property of a logarithm:

`log_ax=b-gta^b=x`

Some other properties of logarithms:

`log_a(xy)=log_a(x)+log_a(y)`

`log_a(x/y)=log_a(x)-log_a(y)`

`log_ax^n=nlog_ax`

`log_aroot(n)x=(log_ax)/n`

To illustrate with an example:

`262144=4^x`

`log262144=log4^x`

`log262144=xlog4`

`x=log262144/log4`

`x=9`

Sources:

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