- The document contains the homework assignment of Tran Le Duy Linh, student ID 18200032 from class 18DTV1_L1. - It summarizes the answers: the average value of the signal is 2/3 and its effective value is 2. - It presents the expression of the signal s(t) as s(t)= u(t+2) + u(t+1) - 4u(t) + u(t-1) + u(t-2) + 2 u(t-3) – u(t-4) –u (t-5).