
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 that $\cos\alpha = -\frac{\sqrt{5}}{5}$, with $\alpha \in (\pi, \frac{3\pi}{2})$,
(Ⅰ) Find the value of $\sin\alpha$;
(Ⅱ) Find the value of $\frac{\sin(\pi+\alpha) + 2\sin(\frac{3\pi}{2}+\alpha)}{\cos(3\pi - \alpha) + 1}$.

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