Laws of Logarithms

Laws of Logarithms:
1. log
a(u v) = loga(u) + loga(v) {The log of a product equals the sum of the logs.}
2. log
a(u/v) = loga(u) - loga(v) {The log of a quotient equals the difference of the logs.}
3. log
a(ur ) = r loga (u)

Use the above properties of logarithms to write
(
1/2)[log (x+1) + 2 log(x-1)] + 2log x as the logarithm of a single quantity.

(1/2)[log (x+1) + 2 log(x-1)] + 2log x Show work. Work within the square brackets and
use the third law of exponents.

 

Return to the Exercise List