Example: Assume your Student ID is 437818854, and then use the fourth digit from left then the fifth digit as origin (location zero) then use the other four digit are the rest digit numbered in the sequence as a sequence x[n] as follow [4,3,7,8,1,8,8,5,4] 1. Find the sequence y, = x[3n] 2. Find the sequence y, = x[2n] – u[n – 2] 3. Find the sequence ya = x[n/2] + u[1 – n]

I go through this every time so I don't know why I'm surprised... Perhaps you used symbols that disappeared when you copy and pasted from some other document, but I don't understand what comes after the = in the second permutation of node A.  I understand you multiplied the numerators, or subtracted VA twice to get VA on the other side of the equal sign, but I don't know where 0.924 comes from, I don't know where -0.256 comes from, I don't know where 4.545 comes from.  These equations probably shouldn't be typed.  Consider writing them on paper and sharing the scan, I guess.  Maybe consider letting me know why I always have to ask the same question twice, too.

Please help and be very thorough

please include explanations and full solutions