Question: Find the product in the complex plane. 1. 2. 2 2 3 + i sin 3 + i sin 21 cos cos 3 3 +

Find the product in the complex plane.
1.
2π 2π 3 + i sin 3 + i sin 21 cos cos 3 프3

2.

+ i sin 21 cos 4 3 cos cos 4 -+ i sin

2 2 3 + i sin 3 + i sin 21 cos cos 3 3 + i sin 21 cos 4 3 cos cos 4 -+ i sin

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