SOLUTION: Hi! I have a question about logarithms. How do you express log 2 using log 5? For example, the other question was express log 1/25 in log 5, so I said: log 1/25 = log (5)^-2 = -2

Question 354863: Hi! I have a question about logarithms. How do you express log 2 using log 5?
For example, the other question was express log 1/25 in log 5, so I said:
log 1/25 = log (5)^-2 = -2log5
I don't know how to apply this to log 2, though. Thanks for your help!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Hi! I have a question about logarithms.
How do you express log 2 using log 5?
---------------
You always have log10 = 1 available.
---
log(5) = log(2) = log(10/5) = log(10)-log(5) = 1-log(5)
=========================
Cheers,
Stan H.

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