Question

Why is log10 3=x
10^x=3
What does this mean?

Answer 1

it's just a different way of putting it

Answer 2

they're both the same, one is just in exponent form and the other is in log form

Answer 3

Yes, but why? What exactly is a 'log'?

Answer 4

if we have
\[a^x=b\]
and if we take log on both sides,then we can write
\[\log_{a}b=x \]

Answer 5

log is short for logarithm

Answer 6

Logarithm. Ma negg you gotta watch this because it's an entire concept that will be hard for someone to type on some random math site http://www.youtube.com/watch?v=mQTWzLpCcW0

Answer 7

Is logarithm a form of growth rate or something?

Answer 8

Ahh ok thanks very much :)

Answer 9

or u can read it here:
http://en.wikipedia.org/wiki/Logarithm