
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 the function f(x) = 2sin(ωx + φ) (ω > 0, $- \frac {π}{2}$ < φ < $\frac {π}{2}$), each point's abscissa on the graph is stretched to twice its original length (the ordinate remains unchanged), and then it is shifted to the left by $\frac {5π}{6}$ units to obtain the graph of y = cosx. Find the value of f($\frac {π}{3}$).

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