362. let a, b and c be such that a +b+c=0 and a 2a2+bc + 262 + ca 2c2+ab is defined. then the value of l is (a) 1; (b) -1; (c) 0; (d) none of the foregoing numb

362. Let a, b and c be such that a +b+c=0 and a 2a2+bc + 262 + ca 2c2+ab is defined. Then the value of l is (A) 1; (B) -1; (C) 0; (D) none of the foregoing numbers.