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OpenStudy (anonymous):
1. If cos θ = √2/2 and 3π/2 < θ < 2π, what are the values of sin θ and tan θ? 2. Is √(1- cos^2 θ) = -sin θ true? If so, in which quadrants does angle θ terminate? 3. Simplify cos^2 θ(1 + tan^2 θ) 4. Simplify (1 - cos x)(1 + cos x)
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