What is the value of a for which \dfrac{1}{\log _{2} a}+\dfrac{1}{\log _{3} a}+\dfrac{1}{\log _{4} a}=1 ?
Answer Choices
A. 9
B. 12
C. 18
D. 24
E. 36
What is the value of a for which \dfrac{1}{\log _{2} a}+\dfrac{1}{\log _{3} a}+\dfrac{1}{\log _{4} a}=1 ?
Answer Choices
A. 9
B. 12
C. 18
D. 24
E. 36