
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
Using Green's theorem, evaluate the line integral \( I = \oint_{L} 2(x^{2}+y^{2}) \, dx + (x+y)^{2} \, dy \) along the contour \( L \) of triangle \( ABC \) with vertices \( A(1,1) \), \( B(2,2) \), \( C(1,3) \).

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