Question

In this Answer, why we put positive sign between these number (25t + 0 )?

In the formula we have native but why this become positive in amswer ?

Skill-Assessment Exercise 4.3 PROBLEM: For each of the following transfer functions, write, by inspection, the general form of the step response: 625 d. G(s) 625 ANSWERS A+B cos (25t + d. ct) 3. Undamped responses Poles: Two imaginary at tjon Natural response: Undamped sinusoid with radian frequency equal to the imaginary part of the poles, or c(t) = Acos(@t - )

Answer 1

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