Key Ideas
log B y = x is the same as B x = y
Logarithmic equations are the inverse functions of exponential equations
If no base is given, a base of 10 is assumed
The natural log, ln , has a base of e (2.718281828...)
Logarithmic rules
log(AX) = logA + logX
log(A/X) = logA - logX
logA 3 = 3logA
These rules can be used to expand or condense logarithmic equations
Solving an exponential or logarithmic equation with variables and checking for extraneous solutions
Finding... read more
