Answer:
(a)False (b)False (c)False (d)False (e)False
Explanation:
a) Continuous time signal can also be digital. e.g continuous time square waveform (see first picture)
b) A discrete time signal can also be analog. e.g discrete time exponential function can take any value (see second picture)
c) When both energy and power of signal are infinite, it is neither power signal nor energy signal e.g ramp signals, [tex]e^{t}u(t)[/tex] signal
d)A signal of infinite length can also have finite energy. e. g [tex]e^{t}u(t)[/tex]
e)Step waveform u(t) is a power signal but also causal
From the given statements about anlagoue and digital signals and the proof gotten with examples, we can say that; All the statements are false.
Analog signals are those that transmit data in the form of wave while Digital signals will be in the form of ones and zeros.
a) This statement is not true because continuous time signals could also be digital in the form of continuous time square waveform.
b) This statement is not true because discrete time signals can also be analog like discrete time exponential function which can take any value.
c) This statement is not true because in a case whereby energy and power of a signal are infinite, it means it is neither power signal nor energy signal.
d) This statement is not true because signals can also be of infinite duration.
e) Thi statement is not true because a periodic power signal like Step waveform is also causal.
Read more about Analog and digital signals at; https://brainly.com/question/8932232
