Question

i totally forgot all logarithm rules and therefore it is hard for me to solve equations. please, remind me or give me link to the good source

Answer 1

\[log_{a}x + log_{a}y = log_{a}(xy)\]

\[log_{a}x – log_{a}y = log_{a}(x/y)\]

\[log_{a}x^{n} = nlog_{a}x\]

Answer 2

that is it!

Answer 3

some more?

Answer 4

If \[a = b^{c}\] then \[c = log_{b}a\]

http://www.mathsrevision.net/alevel/pages.php?page=24

Answer 5

amazing, thank you