Problem: If a and b are positive and aξ =1,bξ =1, then the value of blogbβa is:
Answer Choices:
A. dependent upon b
B. dependent upon a
C. dependent upon a and b
D. zero
E. one
Solution:
Let x=blogbβa;β΄logbβx=logbβaβ
logbβb=logbβa;β΄x=a; and β΄(B) is correct.