1-find the minimum cost SOP and POS forms for the function f(x1,x2,x3,x4)= Σm(0,2,8,9,10,15) +D(1,3,6,7)
2- Derive a minimum cost realization of the four varible function that is equal to 1 if exactly two or exactly three of its variables are equal to 1; otherwise it is equal to 0
3- find 5 three- varible function for which the product -of- sums form has lower cost than the sum-of- products function
4- find the minimum cost SOP and POS forms for the function f(x1,x2,x3,x4)= IIm(0,1,2,4,5,7,8,9,10,12,14,15)