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# 12. सत्यापित कीजिए: $x_{3}+y_{3}+z_{3}−3xyz=21 (x+y+z)[(x−y)_{2}+(y−z)_{2}+(z−x)_{2}]$

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**LIVE**classesQuestion Text | 12. सत्यापित कीजिए: $x_{3}+y_{3}+z_{3}−3xyz=21 (x+y+z)[(x−y)_{2}+(y−z)_{2}+(z−x)_{2}]$ |

Updated On | Sep 8, 2023 |

Topic | All topics |

Subject | Mathematics |

Class | Class 11 |

Answer Type | Video solution: 1 |

Upvotes | 83 |

Avg. Video Duration | 10 min |