How do you evaluate log_8 2?

2 Answers
Sep 3, 2016

Start by remembering that the log function is the inverse of the exponential function.

Explanation:

log_2 8 = y => 2^y = 8

2 is the base of the logarithm, and of the exponential also.

2 raised to what power equals 8?

2^3 = 8, right?

So, log_2 8 equals 3.

Sep 3, 2016

1/3

Explanation:

log _"8"2 = x

8^x=2

x=1/3