Question 21 8 Points a)Why we use constraint satisfaction problem and what are the steps required to convert a problem into constraint satisfaction problem? (4 marks) b)Convert a 8-puzzle problem into constraint satisfaction problem (4 marks) Use the editor to format your answer G Question 22 8 Points Write the general local search algorithm and give step-by-step explanation. Algorithm ( 4 marks) Explanation (4 marks) Use the editor to format your answer Question 23 8 Points Give the truth table for all the connectives in the propositional logic. Use the editor to format your answer Question 24 8 Points Explain Alpha-Beta pruning algorithm