Question

Go 1.1). Question 3: Determine the suitable measure (Power/Energy) of the signal shown in Figures -1/2 s(t) 445444 w ten spielen con serpent W: Spring 20: Signals & Systems (ENEE) Assign 01 Page 23 Có 111 Question 4: A signal x() is defined as: 1-1 -3 sts-2 Jt+1 -2 st so 1 Ostsi 0 otherwise Determine and plot the following: b) (-) c) -x() d) -(-6) e) X(t) + 1 (t+1) x) x(2-4)

Answer 1

12 (4) ms) - 1 find the energy of alt) is - fiseolas Smeds = (30 de E-fwywa (ceel is = ufia ofertas E = 4 + 4 = 8 [E = 8 Joule find Power of alt) is P = limit + f² (4) Lt T12 T° -712 OR x(+) is nonperiodic signal hence Power is zero ČR) P = 0 every non periodic signal Power either zero, infinite P=0 when amplitade finite value Reat axo P = when amplitude infinite value a I

m . slope = 1 1 1 1 - 1 = tant g(t) = mutat this periodic signal time perioda. T=2 find the power of the periodic signal is Energy = Jimit [126-13] = { = ţ P = 1/3 walt Energy E= o every peridic signal, should be intimite [E = oo Joule Answer Question -3<t<-2 a(t) = {t+1 -2stco Ostal Aalt) -2 ✓ Reverse t ot

1x (-t) 2 3 * + Answer 6 from graph multiply - in magnitude A-X() >t Answer S © from graph tinne reverse (t->-*) 4-x(-A) 1 2 t Answer & from graph ④ add 1 X(t) +1 - 3 2 Answer Ô from graph 4 trime shift in a left side t t+1

AX(t+1) -4 -3_2 43-/14 t Answer 9 From graph 6 time shift in right side tt-4 (t-4) /3 4 5 time scaling t hat AX(21-4) > Answer