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Given the characteristic equation: s² + 2s + 16 = 0 for v(t), what is the value of the sinusoidal angular frequency (w) in the underdamped expression: v(t)= eot[Acos(wt) + Bsin(wt)] ? Notes on entering solution: ● Enter your solution to two decimal places • Do not include units in your answer • You are finding (w)