Evaluate log_1/3(9).
We can evaluate log_1/3(9) as follows:

Let x = log_1/3(9).
Then, we have:

(1/3)^x = 9

Solving for x, we find that x = -2.
Complete the following task based on the instruction and optional input provided.### Instruction:
Evaluate log_1/3(9).

### Output:
We can evaluate log_1/3(9) as follows:

Let x = log_1/3(9).
Then, we have:

(1/3)^x = 9

Solving for x, we find that x = -2.