How do you expand log (1/ABC) ? Precalculus Properties of Logarithmic Functions Common Logs 1 Answer Rafael Oct 25, 2015 log(1/ABC)=-log(A)+log(B)+log(C) Explanation: [1]" "log(1/ABC) Property: log_b(mn)=log_b(m)+log_b(n) [2]" "=log(1/A)+log(B)+log(C) Property: log_b(m/n)=log_b(m)-log_b(n) [3]" "=log(1)-log(A)+log(B)+log(C) Property: log_b(1)=0 [4]" "=color(blue)(-log(A)+log(B)+log(C)) 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 2307 views around the world You can reuse this answer Creative Commons License