A- D D 7 Figure 1 1. Consider the circuit shown in Figure 1. Write down the logic expression for the output X in terms of the inputs A, B, C and D. 2. Use Boolean algebra to simplify the above expression. D-x 3. Write down the truth table for the above function. (10 Marks) (20 Marks) (10 Marks) 4. Using the above table write down the canonical SOP and canonical POS expression for the function. (20 Marks) 5. Use Karnaugh maps to simplify the above expression to write the minimum SOP and minimum POS expressions for the above function. (40 Marks)