State with reasons whether the following signals are aperiodic or periodic. For periodic signals, find the...

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State with reasons whether the following signals are aperiodic or periodic. For periodic signals, find the period and state which of the harmonics are present in the series. a) 3 sin t+2 sin 3t b) 2+5 sin 4t + 4 cos 7t c) 2 sin 3t +7 cos at d) 7 cos nt +5 sin 2nt e) 3 cos (2t)2 + 5 cos 2t f) sin (5t/2) + 3 cos (6t/5)+3 sin((t/7) + (m/12)) g) sin 3t + cos (15t/4) h) (3 sin 2t + sin 5t) i) (5 sin 2t) State with reasons whether the following signals are aperiodic or periodic. For periodic signals, find the period and state which of the harmonics are present in the series. a) 3 sin t+2 sin 3t b) 2+5 sin 4t + 4 cos 7t c) 2 sin 3t +7 cos at d) 7 cos nt +5 sin 2nt e) 3 cos (2t)2 + 5 cos 2t f) sin (5t/2) + 3 cos (6t/5)+3 sin((t/7) + (m/12)) g) sin 3t + cos (15t/4) h) (3 sin 2t + sin 5t) i) (5 sin 2t)

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Solution u xn 3sint cinit uthe fme peried of Ihis Time perod y x 1s 7L 1 ... View the full answer