Question: Solve the following with steps please. 1. 2 sen- 9 - 3 sen 0 + 1 = 0 2. 2 cos 0 = -1

Solve the following with steps please.

1. 2 sen- 9 - 3 sen 0 + 1 = 0 2. 2 cos 0 = -1
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