Show how exceptions to the statement “the degree of the product of two polynomials equals the sum of the degrees of each factor” are finessed by the choice (-8) as the degree of the identically zero...

Show how exceptions to the statement “the degree of the product of two polynomials equals the sum of the degrees of each factor” are finessed by the choice (-8) as the degree of the identically zero polynomial. Prove that sin z = 0 if, and only if, z = kp, where k is an integer. Verify the expression in Eq. (15). 4. Using the techniques of this section, find the steady-state current output Is of the circuits in Fig. 3.23.