Using the representation of GF(8) given in Table B.3 on page 346 of Essentials of Error Control Coding, compute the following. (a) 4+2++1 (b) (3+2)(6+3) (c) 6(5+4)+2 (d) (3x2+x+1)(5x3+x+2) Table B.3 The Galois field GF 23) generated by pi(X)=1+X+X3