MathDB

10

Part of 2003 National High School Mathematics League

Problems(1)

Logarithm

Source: 2003 National High School Mathematics League, Exam One, Problem 10

3/16/2020
a,b,c,da,b,c,d are positive integers, and log⁡ab=32,log⁡cd=54\log_{a}b=\frac{3}{2},\log_{c}d=\frac{5}{4}. If a−c=9a-c=9, then b−d=b-d=________.
logarithms