
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 $f(x)=\sin \left( \omega x- \frac{\pi }{6} \right)+\sin \left( \omega x- \frac{\pi }{2} \right)$, where $0 < \omega < 3$. It is known that $f\left( \frac{\pi }{6} \right)=0$.

(1) Find $\omega$;

(2) Stretch the horizontal coordinates of each point on the graph of the function $y=f(x)$ to twice its original length (the vertical coordinates remain unchanged), then shift the resulting graph to the left by $\frac{\pi }{4}$ units to obtain the graph of the function $y=g(x)$. Find the minimum value of $g(x)$ on $\left[ -\frac{\pi }{4},\frac{3\pi }{4} \right]$.

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