
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
Let vectors $\overrightarrow {a} = (2, \sin\theta)$ and $\overrightarrow {b} = (1, \cos\theta)$, where $\theta$ is an acute angle.
(1) If $\overrightarrow {a} \parallel \overrightarrow {b}$, find the value of $\tan\theta$.
(2) If $\overrightarrow {a} \cdot \overrightarrow {b} = \frac {13}{6}$, find the value of $\sin\theta + \cos\theta$.

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