Question

How do you evaluate `log 0.001`?

Answer 1

See explanation

Explanation:

I assume `log` means logarythm with base `10`. To calculate such logarythm you have to think of it as a solution to the equation:

`10^x=0.001`

So you look for a real number `x` to which you have to raise `10` to get `0.001`

`0.001=1/1000=1/10^3=10^(-3)`, so to get `0.001` you have to raise `10` to the power of `(-3)`, so this is the solution to the equation and answer to the task:

`log0.001=-3`