SOLUTION: If cos θ = 0.2, find the exact value of cos θ + cos(θ + 2pi) + cos(θ + 4pi)

SOLUTION: If cos θ = 0.2, find the exact value of cos θ + cos(θ + 2pi) + cos(θ + 4pi)

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Question 839522: If cos θ = 0.2, find the exact value of cos θ + cos(θ + 2pi) + cos(θ + 4pi)
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
= 0.2 + 0.2 + 0.2
0.6

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