
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
Given the function $f(x) = \sin x + \cos x$, where $x \in \mathbb{R}$.

1. Find the value of $f(\frac{\pi}{2})$;
2. Find the smallest positive period of the function $f(x)$;
3. Find the minimum value of the function $g(x) = f(x + \frac{\pi}{4}) + f(x + \frac{3\pi}{4})$.

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