Question

simplify each expression by using properties of logarithms or definitions. check your results using the change of base formula
a.) log3 27=

b.) log5 (1/5)=

c.) if f(x)= ln (x), find f(e^x)

Answer 1

(a) 3log (3^3) = 3
(b) 5log (5^(-1)) = -1
(c) f(e^x) = ln(e^x) = x