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Chapter 1, Problem 5E Step-by-step solution Step 1 of 2 The time period of the sine-wave signal is, T = Calculate the frequency. Substitute for = = 1000 Hz Therefore, the frequency, f is 1000 Hz Step 2 of 2 Calculate the angular frequency. = 2πf Substitute 1000Hz for f. = 2π(1000) = 2π X rad/s Therefore, the angular frequency, is