For the following circuit, find the output and design a simpler circuit that has the same output. (Hint: Find the circuit output by first finding the output of each gate, going from left to right, and simplifying as you go.) 9. (10 Points) 2.15 (b) Use only DeMorgan's relationships and Involution to find the complement of the following function: (b) f(A,B,C,D)=ABC+(A+B+D)(ABD+B) 10. (10 Points) 2.19 Construct a gate circuit using AND, OR, and NOT gates that corresponds one to one with the following switching algebra expression. Assume that inputs are available only in uncomplemented form. (Do not change the expression.) (WX+Y)[(W+Z)+(XYZ)]