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1. Given cos 2θ = −5/18 and 180<θ<270, find values of sinθ and cosθ 2. Given...

1. Given cos 2θ = −5/18 and 180<θ<270, find values of sinθ and cosθ

2. Given the exact value of cos(2 arctan 4/3)

3. Solve 2cosθ = 2cos2θ for all exact solutions in degrees

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