Mostly need help understanding problems 3/4, just included 1 and 2 for context! Please help with explanation as LSFR/Spread Spectrum has me very confused right now1. Design a fifth order shift register that produces a maximal length sequence.2. Generate the sequence for an initial fill of all ones.3. Derive the corresponding generator function for this initial fill using the reduced expression for the numerator instead of xN4. Demonstrate, by long division, that it produces the same sequence.