
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 foci of the ellipse $C$ are $F_1(-1,0)$ and $F_2(1,0)$. A line passing through $F_2$ and perpendicular to the $x$-axis intersects at points $A$ and $B$, and the length $|AB|=3$. Determine the equation of ellipse $C$.

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