Question

How do you evaluate `log sqrt 0.0001`?

Answer 1

I found `-2` but I considered base `10` for your log.

Explanation:

I assume a log in base `10` so you have:
`log_(10)(sqrt(0.0001))=log_(10)(1/10000)^(1/2)=1/2[log_(10)(1)-log_(10)(10000)]=1/2[0-4]=-2`