What is the change of base formula for log_b(x) using base k?
Alog_k(b) / log_k(x)
Blog_k(x) / log_k(b)
Clog_k(x) * log_k(b)
Dlog_k(x) - log_k(b)
Answer & Solution
Correct answer: B. log_k(x) / log_k(b)
Converting to base k computes log_k of the argument divided by log_k of the original base.
Keep practising Algebra: logarithms
Browse all Algebra: logarithms questions for ICSE Class 9, or explore more Mathematics topics.
Related questions
Match each logarithm evaluation with its exact numerical answer:Match each special logarithmic property with its evaluated value:Match each fundamental law of logarithms with its algebraic rule:Match each logarithmic statement with its equivalent exponential form:Common logarithms are named Briggsian logarithms after whom?How is the digit count of integer x related to log10(x)?If x = a * 10^n with 1 <= a < 10, what is the characteristic?Evaluating log_2(1/2) yields which numerical result?