Question

If a + b + c not equal to 0 a3 + b3 + c3 = 3abc a, b, c are real numbers then which of the following is true :
(1) a = b = c (2) b = c /= a (3) a = b  c (4) a + c = b/= means not equal to

Answer 1

It should be (1) a=b= c