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January 25, 2015

January 25, 2015

Posted by **Julia** on Sunday, April 7, 2013 at 10:17pm.

I need help with determining the value of each of the following logarithmic expressions. Do not change the bases- thx

a) log[base8]4

b)log[base(1/3)]27

- adv functions -
**Reiny**, Sunday, April 7, 2013 at 11:11pmlet x = log

_{8}4

then 8^x = 4

(2^3)^x = 2^2

2^(3x) = 2^2

then 3x = 2

x = 2/3

do the 2nd one the same way, noting that

1/3 = 3^-1 and 27 = 3^3

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