Answer:
1.404
Step-by-step explanation:
Using the rule of logarithms
log x - log y ⇔ log([tex]\frac{x}{y}[/tex] )
Hence
[tex]log_{4}[/tex] 21 - [tex]log_{4}[/tex] 3 = [tex]log_{4}[/tex]([tex]\frac{21}{3}[/tex] = [tex]log_{4}[/tex] 7
Thus
[tex]log_{4}[/tex] 7 = 2.196 - 0.792 = 1.404
