SOLUTION: Log_3 27 = (a) 1/3 (b) 2 (c) 3 (d) 9 (e) 81

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Question 755377: Log_3 27 =
(a) 1/3
(b) 2
(c) 3
(d) 9
(e) 81
Found 2 solutions by Cromlix, Alan3354:
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Log base 3 27 = Log base 3 3^3
= 3 Log base 3 3 = 3 x 1
(Log base a a = 1)
=3 (c)
Hope this helps
:-)

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
log%283%2C27%29
(a) 1/3
(b) 2
(c) 3
(d) 9
(e) 81
-----
27+=+3%5E3
log%283%2C27%29+=+log%283%2C3%5E3%29
= 3
-------------
Or,
log%283%2C27%29+=+log%2827%29%2Flog%283%29 base change formula
= 3