jw F(w). [a - acos (wr)] - A 1 Tjw jwF(W) = -2A (1-cos (WT)). Tjw jwF(W) = -2A (asin ² (WT)) Tjw How did he get the value inside the circle? It is possible to explain step by step, a clear line, complete the solution, and reach the final result

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