What is value of log?

Answer 1

log (short for logarithm) does not actually have a value. It is actually an operation. So if you see log(10), for instance, you need to take the logarithm of the number in the parenthesis. To do that, just ask yourself "ten raised to WHAT POWER equals the number inside the parenthesis?" And log(#) = that exponent.

To finish the example above, log(10) asks you 10? = 10. The answer here is 1, so log(10)=1.