
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 that $\overset{→}{a\_n}=\left(\cos \frac{nπ}{6},\sin \frac{nπ}{6}\right)$, $n∈ℕ^∗$, $\overset{→}{b}=\left( \frac{1}{2}, \frac{\sqrt{3}}{2}\right)$, calculate the value of $y={\left| \overset{→}{{a\_1}}+ \overset{→}{b}\right|}^{2}+{\left| \overset{→}{{a\_2}}+ \overset{→}{b}\right|}^{2}+···+{\left| \overset{→}{{a\_2015}}+ \overset{→}{b}\right|}^{2}$.

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