
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 ellipse E: $\\frac{x^{2}}{4} + \\frac{y^{2}}{2} = 1$, O is the coordinate origin, and a line with slope k intersects ellipse E at points A and B. The midpoint of segment AB is M, and the angle between line OM and AB is θ, with tanθ = 2 √2. Find the value of k.

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