Consider the following systems :
a) y(t)= √f(t)
b) y(t)= f(t+1)+f(t−1)/2
c) y(t)=3+₀∫ᵗf(τ)dτ
d) y(t)=₀∫ᵗτf(τ)dτ
e) y(t)=(t−1)f(1−t)
​f) y(t)=cos(f(t))
g) y(t)=sin(f(t−1))
h) y(t)=sin(f(t+1))
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Which of the following systems are linear? nonlinear? and why?.
Which of the systems are instantaneous? dynamic? and why?
Which of the systems are causal? noncausal? and why?
Which of the systems are time-invariant? Time-varying? and why?