2.5 Signal Operations 2 Consider the following block diagram What is the equation representing the output response y[n] ? 2.6 Signal Operations 3 If we represent finite-length signals as vectors in Euclidean space, many operations on signals can be encoded as a matrix-vector multiplication. Consider for example a circular shift in C3 : a delay by one (i.e. a right shift) transforms the signal x=[x0x1x2]T into x=[x2x0x1]T and it can be described by the matrix D=010001100 so that x ' =Dx Determine the matrix F that implements the one-step-different operator in C3 i.e. the operator that transforms a signal x into 21[(x0+0.5x1x2)(x12x0+x2)(x2x1)]T