To find the logarithm of a number other than a power of 10 you need to use your scientific calculator or pull out a logarithm table if they still exist. So the base of the given logarithm equation is 27. If y log b x then.
Log b c 1 log c b Logarithm change of base rule.
Z is hence the answer to log x y. Lets now see some non-standard ways the logarithm graph can appear. Z is hence the answer to log x y. Value of Log 1 to 10 for Log Base 10.