1.

If a+ b + c = 0 , then the value of a^3 + b^3 + c^3 is :

Answer»

0
abc
3abc
none of these

Solution :`THEREFORE a^3+b^3+c^3-3abc`
`=(a+b+c)(a^2+b^2+c^2-ab-bc-ac)`
or `a^3+b^3+c^3-3abc=0`
`RARR a^3+b^3+c^3=3abc`


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