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Q1. Given two vectors A[n] = [1 3 5 5 7 1 5]. B[n] = [2 2 8 7 5]. Arrows show the zero point. so for A[n]. the index n = [ -2. -1. 0. 1. 2. 3. 4] and for B[n]. the index n = [ -1. 0. 1. 2. 3]. Calculate the C[n] = A[n] @ B [n]. Using either the numerical method or the table method, detailed steps must be provided. Then draw the discrete time series A[n]. B[n]. and C[n]. For the A[n] and B[n]. calculate their cross-correlation D[n]. Plot D[n]. Calculate the autocorrelation of A[n] and B[n]. and plot the results