
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
The graphs of four functions, labelled (2) through (5), are provided. The domain of function (3) is $$\{-6,-5,-4,-3,-2,-1,0,1,2,3\}.$$ Identify the labels of the functions which are invertible and find their product. The functions are described as follows:
- Function (2): $f(x) = x^3 - 3x$
- Function (3): A discrete set of points given in the domain.
- Function (4): $g(x) = \tan(x)$, which repeats every $\pi$.
- Function (5): $h(x) = 3/x$, excluding $x = 0$.

Present the answer in LaTex format: \boxed{Your answer}
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