Problem 7 Answer the questions asked in O& w 4.24(a) for each of the following signals (t) 2(t) 1 0123 3(t) 56 1234 Problem 8 O&W.25. Do parts(b)-(f) plus the following new part(a) (a)xu)can be written as A(jw)eje(u)where A(jw)and e(w) are real. Find e(ju) Reminder: The first 20 problems in each chapter of O&W have answers included at the end of the text. Consider using these for additional practice, either now or as you study fo testsProblem 7 Answer the questions asked in O&W 4.24 (a) for each of the following signals: x1(t) 1 −1 0 1 t −1 x2(t) t 1 −3 −2 −1 0 1 2 3 x3(t) t −3 −2 −1 1 2 3 4 5 6 1 −1 Problem 8 O&W 4.25. Do parts (b) - (f) plus the following new part (a) (a) X(j�) can be written as A(j�)ej�(j�) where A(j�) and ω(j�) are real. Find ω(j�). Reminder: The first 20 problems in each chapter of O&W have answers included at the end of the text. Consider using these for additional practice, either now or as you study for tests. 4