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  1. If a1/3 + b1/3 + c1/3 = 0, then a relation among a, b , c is
    1. a + b + c = 0
    2. (a + b + c)3 = 27abc
    3. a + b + c = 3abc
    4. a3 + b3 + c3 = 0
Correct Option: B

If a + b + c = 0
a3 + b3 + c3 = 3abc
∴  If   a1/3 + b1/3 + c1/3 = 0
⇒  (a1/3)3 + (b1/3)3 + (c1/3)3
= 3.a1/3.b1/3.c1/3
⇒  a + b + c = 3.a1/3.b1/3.c1/3
⇒  (a + b + c)3
= 33.(a1/3.b1/3.c1/3)3 = 27abc



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