Problem 3 Homework 4 Periodic function. Compute the fundamental period T, the angular frequency W and the frequency f in Hertz of each of the following signals. 1. x(t) = cos +3sin (4), Enter T1, W1 and f1 2. x(t)=2 cos(2x), Enter T2, W2 and 12 3. x(t) is given graphically below. Enter T3, W3 and 13 3- 2 + 6 -+ What is the equation of the function x(r). Enter the equation as a shifted cosine i,e x(t) = A cos (cot + 0). 4. x(t) is given graphically below. Enter T4, W4 and f4 and the equation of x(t) as a shifted cosine i,e x(t) = A cos(at +0) + B. f(t) 3- 2- -1- For the graphs 5 through 10, write the equation of each as shifted cosine i.e in the for x(r) = A cos(at +0) + B, be negative. 5. x(t) = A cos (at + 0) + B. 6. x(t) = A cos(at + 0) + B. 7. x(t) A cos (ant + 0) + B. 8. x(t) A cos(axt+0) + B. 9. x(t) = A cos(at + 0) + B. 10. x(t) = A cos(at +0) + B. 5. 7. 9. - 2+ -2- 27 3x 6. 3 -2 + 4x 8. x/2 M -H NA -2- 3 10. ww My Solutions > where theta is expressed in radians. can