
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 the terminal side of $\alpha$ passes through the point $(-4, 3)$, find the values of the following expressions:  
(1) $$\frac {\sin( \frac {\pi}{2}+\alpha)-\cos(\pi+\alpha)}{\sin( \frac {\pi}{2}-\alpha)-\sin(\pi-\alpha)}$$;  
(2) $\sin\alpha \cdot \cos\alpha$.

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