Question: Although 240 is a special angle on the unit circle, Aiden wanted to determine its coordinates using the sum and difference formulas. Part A:

Although 240 is a special angle on the unit circle, Aiden wanted

Although 240 is a special angle on the unit circle, Aiden wanted to determine its coordinates using the sum and difference formulas. Part A: Determine cos 240 using the cosine sum identity. Be sure to include all necessary work. (5 points)

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