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a + b + c = 0 then a3 + b3 + c3 = ………………A) \(\frac{abc}{3}\)B) 3 abc C) ab+c D) \(\frac{ab}{c}\) |
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Answer» Correct option is B) 3 abc Correct option is (B) 3 abc Since, \(a^3+b^3+c^3\) - 3ab \(=(a+b+c)(a^2+b^2+c^2-bc-ca-ab)\) \(\therefore\) If a + b + c = 0, then \(a^3+b^3+c^3\) = 3 abc. |
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