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2. (5 points) Let u(t) = 2(1 1t|) 11-1.1(t), where 1-1,1](t) equals 1 if-1 5751 and zero otherwise. (a) Plot the Fourier transform of the signal u(t). (b) What is the energy of the signal u(t)? (c) What is the power of the signal u(t)? (d) Consider the signal v(t) = -x ult - 2k). What is the energy and power of the signal v(t)