Difference between revisions of "1983 AHSME Problems/Problem 25"
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Revision as of 13:33, 14 June 2015
Problem: If 60^a=3 and 60^b=5, then 12^[(1-a-b)/2(1-b)] is
(A):sqrt3 (B): 2 (C): sqrt5 (D): 3 (E): sqrt12
Solution: We know that a=log 3 and b=log 5
60 60
Answer:B