Use the Laws of logarithms to rewrite the expression
` \Ln(\frac(x^(4) y^(13))(z^(18))) `
in a form with no logarithm of a product, quotient or power.
After rewriting we have
` \Ln(\frac(x^(4) y^(13))(z^(18)))= A \Ln(x) + B \Ln(y)+ C \Ln(z) `

with
A=\displaystyle {A}=  
B=\displaystyle {B}=  
and
C=\displaystyle {C}=