The following question involves discrete convolution. Use a graphical convolution method for a) and a mathematical approach with b)
a) x[n]=8[n]+28[n-1]+38[n-2]+48[n-3] and h[n]=8[n]+48[n-1]+28[n-2]
What is x[n] * h[n]?
b) d[n]=a"u[n] and e[n]= a-"u[-n]. a is a constant where[a|<1.
What is d[n] * e[n]?