Expression of a function f(a,b,c,d) is given in 2nd canonical form that includes 6 maxterms. f(a,b,c,d)= (a+b+c+d)(a+b'+c+d)(a'+b'+c+d)(a'+b'+c+d')(a+b'+c+d)(a+b+c+d') a. Draw the Karnaugh map of the function f(a,b,c,d) and find all prime implicants. b. Find all prime implicants of the complement (f(a,b,c,d)) of the function using the Quine- McCluskey method.