How do you evaluate #1/2 log_2 64 + 1/3 log_5 125#? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer A. S. Adikesavan Apr 17, 2016 4 Explanation: Use #log_aa=1 and log (a^m)=m log a# The given expression is #(1/2)log_2(2^6) + (1/3) log_5(5^3)=(1/2)6 log_2 2 + (1/3) 3 log_5 5=3+1=4# Answer link Related questions What is the common logarithm of 10? How do I find the common logarithm of a number? What is a common logarithm or common log? What are common mistakes students make with common log? How do I find the common logarithm of 589,000? How do I find the number whose common logarithm is 2.6025? What is the common logarithm of 54.29? What is the value of the common logarithm log 10,000? What is #log_10 10#? How do I work in #log_10# in Excel? See all questions in Common Logs Impact of this question 1782 views around the world You can reuse this answer Creative Commons License