3. First reverse-map each of the following into a Karnaugh map with the ordered quad w,x,y,z.Next, use another Karnaugh map for each to produce the minimal sum of products. For

each also shade each distinguished 1-cell. a. На = у'-z + w'.x'-у+ w:x-у'+ w:x':у b. Hb = w'.z + X•z + x '·y + W•x'•z Hc = w•x'.y + x'·y'.z' + x•y•z + w•y•z'+ w'•x'·y + w'•x•y'.zс.