Question

How do you calculate `log_9 1.1` with a calculator?

Answer 1

`log_9 1.1=ln(1.1)/ln(9)approx0.043`

Explanation:

Recall that `log_ab=log_cb/log_ca=ln(b)/ln(a).`

Here, we see `a=9, b=1.1,` so

`log_9 1.1=ln(1.1)/ln(9)approx0.043`