Question

How do you evaluate `log0.0081`?

Answer 1

`-2.091515`, nearly

Explanation:

`log(0.0081)=log ((81)(10^-4))=log ((3^4)(10^-4))`

`=4 log 3-4 log 10 =4(log3-1)=-2.091515`, nearly

= direct value, from the calculator.