log to base 5

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- December 21st 2009, 06:53 PMmath321help needed logs problem
log to base 5

- December 21st 2009, 07:18 PMbigwave
If the bases are the same

the definition is

so

then

- December 21st 2009, 07:21 PMmath321
right now im just practicing for my exam

logx + log (x-21) = 2 - December 21st 2009, 10:52 PMGrandad
- December 22nd 2009, 03:20 AMskeeterQuote:

... be sure to check solutions in the original equation to avoid domain issues.