Question
यदि $a+b+c=0$ है, तो $a^3+b^3+c^3$ बराबर है:

Answer

अगर $a+b+c=0$, फिर
$a^3+b^3+c^3-3 a b c=0$
$\Rightarrow a^3+b^3+c^3=3 a b c$

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