What is the value of
\dfrac{\log _{2} 80}{\log _{40} 2}-\dfrac{\log _{2} 160}{\log _{20} 2} ?
Answer Choices
A. 0
B. 1
C. \dfrac{5}{4}
D. 2
E. \log _{2} 5
What is the value of
Answer Choices
A. 0
B. 1
C. \dfrac{5}{4}
D. 2
E. \log _{2} 5