How do you evaluate the expression #2^(log_2 45)#? Precalculus Properties of Logarithmic Functions Logarithm-- Inverse of an Exponential Function 1 Answer sahar del May 20, 2018 #45# Explanation: exponentiation and log are inverse functions #a^(log_a(b))=b# #cancela^(cancellog_a(b))# #b=45# Answer link Related questions What is a logarithm? What are common mistakes students make with logarithms? How can a logarithmic equation be solved by graphing? How can I calculate a logarithm without a calculator? How can logarithms be used to solve exponential equations? How do logarithmic functions work? What is the logarithm of a negative number? What is the logarithm of zero? How do I find the logarithm #log_(1/4) 1/64#? How do I find the logarithm #log_(2/3)(8/27)#? See all questions in Logarithm-- Inverse of an Exponential Function Impact of this question 2575 views around the world You can reuse this answer Creative Commons License