
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
(Ⅰ) Evaluate the following expression: 
$$\frac {\tan 150^\circ \cos 210^\circ \sin(-60^\circ)}{\sin(-30^\circ)\cos 120^\circ}$$;
(Ⅱ) Simplify the following expression: 
$$\frac {\sin(-\alpha)\cos(\pi+\alpha)\tan(2\pi+\alpha)}{\cos(2\pi +\alpha) \sin(\pi -\alpha) \tan(-\alpha)}$$.

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