
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 an acute triangle \(ABC\) with opposite sides \(a\), \(b\), \(c\) corresponding to angles \(A\), \(B\), \(C\) respectively, and it is known that \(a = b \cos C + \frac{\sqrt {3}}{3} c \sin B\),
(1) Find angle \(B\);
(2) If \(b = 2\), find the maximum value of \(ac\).

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