
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
If the function $f(x)=\sin \omega x + \sqrt{3}\cos \omega x (\omega > 0)$ has a minimum positive period of $\pi$, then one value of $\varphi$ that satisfies the condition "$f(x+\varphi)$ is an even function" is ______ (provide one value of $\varphi$ that satisfies the condition).

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