1. (1) Find the FT of x(t) = e-³tu(t). (5%) (2) Find the FT of x(t) = e³tu(-t). (5%) (3) Use (1) and (2) to find the FT of x(t) = e-|3t| (5%) (4) Find the FT of x(t) = e-1³t|cos(2t). (5%) (5) Find the FT of x(t)= = (5%) t²+9'
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