
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
For any sets $X$ and $Y$, define: $①X-Y={x|x∈X$ and $x∉Y}$, $②X△Y=(X-Y)∪(Y-X)$. Given $A={y|y=x^{2},x∈R}$ and $B={y|-2≤slant y≤slant 2}$, find $A△B=$ _____.

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