Solve each equation on the interval 0 < 2. 1) 2 cos 2 +
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Question:
Solve each equation on the interval 0 ≤ θ < 2π.
1) 2 cos2 θ + cos θ - 1 = 0
2) sin2 θ - cos2 θ = 1 + cos θ
3) tan θ = cot θ
4) 2 sin2 θ - 5 sin θ + 3 = 0
5) sec2 θ + tan θ = 0
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