
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 vectors $\overrightarrow{a} = (\sqrt{2}, \sqrt{2})$ and $\overrightarrow{b} = (\cos x, \sin x)$, with $\frac{\pi}{4} < x < \frac{\pi}{2}$, calculate the value of $\cos(x + \frac{\pi}{4})$ given that $\overrightarrow{a} \cdot \overrightarrow{b} = \frac{8}{5}$.

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