Wiley signals and systems e book TLFe BO 559

543 Appendix A Solutions to the Exercises

l , ( t ) = -sin(Gt) = - u ( t )

Solution 16.9

a) H ( s ) has poles at s = fj + unstable

c) s2 - X s + 1 must be a Hurwitz po1yriomi;tl + K < (1

h, ( t ) is intrgrablc i stahlP

Solution 16.10

a)