8. Problem 2.48 (modified) A circuit with two outputs has to implement the following functions: f(wxy,zm (4,6,79,12,14)+D(8,10) gwxy,z) m (2.9,10,12,15)+ D(4,613) Design the minimum-cost circuit and compare its cost with combined costs of two circuits that implement f and g separately. Assume that the input variables are available in both un-complemented and complemented forms. 9. Design the simplest circuit that implements the function fCt1,2,3 2 m (0,1,2,4,5,6) using NAND gates. 10. Design the simplest circuit that implements the function f(x.x2.x) 2 m (0,1,3,4,5,6) using NOR gates. 11. Given the following factored equation that satisfies a fan-in of 2 ++ w * 0, + z)) First draw a circuit using AND, OR and INVERTER gates. Then convert requirement:f(w, x, y, z) : (w + x) *-*-+ (W * (