Answer Happy

= 2t = Investigate if the following sytems are memoryless, linear, time-invariant, casual, and stable. a. y(t) = x(t – 2) + x(2 – t) b. y(t) = 526 x(1)dt c. y(t) = [cos(3t)]x(t) d. y(n) = x(n − 2) – 2x(n – 8) e. y(n) = nx(n) f. y(n) = x(4n + 1) =