21. If a +b+c= 0, then a³ + b³ + c³ is equal to?
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Answered by
16
Answer:
Since,
a3+b3+c3−3abc=(a+b+c) (a2+b2+c2−bc−ca−ab)
Given, a+b+c=0
∴a3+b3+c3−3abc=0
∴a3+b3+c3=3abc
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Answered by
1
Answer:
above answer is correct
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