Question: In Exercises 1-2, verify the identity. 1. csc 2 = csc / 2 cos 2. cos4x - sin4 x = cos 2x

In Exercises 1-2, verify the identity.
1. csc 2Θ = csc Θ / 2 cos Θ
2. cos4x - sin4 x = cos 2x

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