How do you calculate #log_2 512#?
Notice that 512 is
By the Power Rule, we may bring the 9 to the front of the log.
The logarithm of a to the base a is always 1. So
the value of
we need to calculate
Powers of numbers can be written in index form or log form.
They are interchangeable.
I think of log form as asking a question. In this case we could ask:
"Which power of
"How can I make
We find that
In this case we have:
The powers of
There is a real advantage in learning all the powers up to