
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
A line $l$ passes through point $M(1,2)$ and intersects the circle $C$: $(x-3)^{2}+(y-4)^{2}=25$ at points $A$ and $B$. Point $C$ is the center of the circle. When $\angle ACB$ is at its minimum value, find the equation of line $l$.

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