Exponential and Logarithm Functions

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March 25th 2009, 02:00 PM
14041471

Exponential and Logarithm Functions

Can anyone help me solve these functions as I don't really know where to start with them. Thanks.
log264 =
log2(1/16) =
March 25th 2009, 02:35 PM
skeeter

Quote:

Originally Posted by 14041471

Can anyone help me solve these functions as I don't really know where to start with them. Thanks.
log264 =
log2(1/16) =

if $2^6 = 64$ , then $\log_2(64)$ = ?

following that same idea ...

$2^{-4} = \frac{1}{16}$
March 25th 2009, 04:28 PM
HallsofIvy

Logarithm can be defined as the inverse to the exponential function:
$log_b(b^x)= x$ .
$64= 2^6$ and $1/16= 2^{-4}$ .

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