The Student Room Group

Log law proof

Edit: Mistook an alpha sign for the letter a :P
(edited 9 years ago)
Reply 1
Are you sure that's what you are asked to prove? Because you are quite right, it's as trivially simple as that if so. A much more interesting result is
log base a (b)= log base c (b) / log base c (a)
Reply 2
Original post by Mawar3
Are you sure that's what you are asked to prove? Because you are quite right, it's as trivially simple as that if so. A much more interesting result is
log base a (b)= log base c (b) / log base c (a)


My bad i mistook an alpha sign for the letter a -.-

Thanks for your reply, I now realise I have to prove the changing base of a logarithm identity

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