
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 sets $A=\{x|x^{2}-x-6\geqslant 0\}$ and $B=\{x|x \gt c\}$, where $c\in R$.<br/>① The complement of set $A$ in $R$ is ______；<br/>② If $\forall x\in R$, either $x\in A$ or $x\in B$, then the range of $c$ is ______.

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