MCQ
If a + b + c = 0, then a3 + b3 + c3 is equal to:
- A2abc
- B1
- C3abc
- DAbc
✓
Answer
- 3abc
Solution:
If a + b + c = 0, then
a3 + b3 + c3 - 3abc = 0
⇒ a3 + b3 + c3 = 3abc
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