
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 the following conclusions:
\(①\) The central angle of a sector is \(120^{\circ}\), and its radius is \(2\), then the arc length of the sector is \(\frac{4π}{3}\);
\(②\) A small auditorium has \(25\) rows of seats, with \(20\) seats in each row. After a psychology lecture, all seats were occupied by students. To understand the situation, the students seated in the \(15\)th seat of each row were selected for a test, which is a systematic sampling method;
\(③\) When a person shoots at a target twice in a row, the event "at least one hit" and the event "two consecutive misses" are mutually exclusive events;
\(④\) If \(0 < x < \frac{π}{2}\), then \(\tan x > x > \sin x\);
\(⑤\) If the variance of the data \(x\_1\), \(x\_2\), \(…\), \(x\_n\) is \(8\), the variance of the data \(2x\_1+1\), \(2x\_2+1\), \(…\), \(2x\_n+1\) is \(16\).

The correct conclusion numbers are \_\_\_\_\_\_ \(.\) \((\)Fill in the numbers of the conclusions you think are correct\()\)

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