$ f(x) = 2\left( rac{1 - \cos 2x}{2}
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- #### 2300
- #### 51.92
- #### 298.29Question: Find the sum of all angles $ z \in [0^\circ, 360^\circ] $ that satisfy $ 2\sin(2z) + 1 = 0 $.
- + (n-1) \cdot 7 \leq 200 \Rightarrow (n-1) \cdot 7 \leq 197 \Rightarrow n-1 \leq 28.14 \Rightarrow n \leq 29
- + 2025 + 2027 + 2029 = (2023 + 2029) + (2025 + 2027) = 4052 + 4052 = 8104
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