Home
Class 9
MATHS
In the formula, a^3+b^3+c^3-3 abc = 1/...

In the formula,
`a^3+b^3+c^3-3 abc = 1/2 (a+b+c){(a-b)^2+(b-c)^2+(c-a)^2}` ,
if `a + b + c != 0` , Show that if `a^3 +b^3+c^3= 3abc impliesa=b=c`

Promotional Banner

Topper's Solved these Questions

  • HARDER PRODUCT AND FACTORISATION

    KALYANI PUBLICATION|Exercise EXERCISE|148 Videos
  • GEOMETRY

    KALYANI PUBLICATION|Exercise EXERCISE|10 Videos
  • INEQUALITIES AND INEQUATIONS

    KALYANI PUBLICATION|Exercise EXERCISE|126 Videos

Similar Questions

Explore conceptually related problems

In the formula, a^3+b^3+c^3-3 abc = (a+b+c)(a^2+b^2+c^2-ab-bc-ca) if a + b + c = 0 , then show that a^3 + b^3 + c ^3 = 3 abc

If a = 37, b = 36, c = 38 , then prove that a^3+b^3+c^3-3abc=333

If a + 2b = 4c , then prove that a^3+8b^3-64c^3+24abc=0

Find the division of (a^3+b^3-c^3+3abc) -: (a+b-c)

If a,b,c are in A.P.,prove that - a^3-8b^3+c^3+6abc=0

If a = x+y, b=x-y and c = x+2y , then show that a^3+b^3+c^3-3abc =7y^2(3x+2y)

If 2s = a + b + c , then prove that (s-a)^3+(s-b)^3+(s-c)^3+3 abc = s^3

Resolve into factors (a-b)^3 +(b-c)^3+(c-a)^3

Prove that (a-2b)^3+(2b-c)^3+(c-a)^3 =3(a-2b)(2b-c)(c-a)

Resolve into factors : (a-2b)^3+(2b-c)^3+(c-a)^3

KALYANI PUBLICATION-HARDER PRODUCT AND FACTORISATION -EXERCISE
  1. In the formula, a^3+b^3+c^3-3 abc = (a+b+c)(a^2+b^2+c^2-ab-bc-ca) ...

    Text Solution

    |

  2. In the formula, a^3+b^3+c^3-3 abc = (a+b+c)(a^2+b^2+c^2-ab-bc-ca) ...

    Text Solution

    |

  3. In the formula, a^3+b^3+c^3-3 abc = 1/2 (a+b+c){(a-b)^2+(b-c)^2+(c-a...

    Text Solution

    |

  4. Find the product of the following. (x+2) (x+3) (x+4)

    Text Solution

    |

  5. Find the product of the following. (x+2) (x+5) (x+7)

    Text Solution

    |

  6. Find the product of the following. (x+8) (x+12) (x+15)

    Text Solution

    |

  7. Find the product of the following. (x+5) (x+9) (x+11)

    Text Solution

    |

  8. Find the product of the following. (x+a) (x+3a) (x+5a)

    Text Solution

    |

  9. Find the product of the following. (x+3) (x+3) (x-6)(x+2)

    Text Solution

    |

  10. Find the product of the following. (x+4) (x+5) (x-10)

    Text Solution

    |

  11. Find the product of the following. (x-8) (x+3) (x+1)

    Text Solution

    |

  12. Find the product of the following. (x-5) (x-2) (x+8)

    Text Solution

    |

  13. Find the product of the following. (x-3) (x+7) (x-4)

    Text Solution

    |

  14. Find the product of the following. (x-6) (x-7) (x-11)

    Text Solution

    |

  15. Find the product of the following. (x-3) (x-6) (x-9)

    Text Solution

    |

  16. Find the product of the following. (x-14) (x+8) (x+6)

    Text Solution

    |

  17. Find the product of the following. (x+2a) (x-5a) (x+6a)

    Text Solution

    |

  18. Find the product of the following. (x+5a) (x-8a) (x-3a)

    Text Solution

    |

  19. Resolve into factors : x^3+y^3 + 3xy-1

    Text Solution

    |

  20. Resolve into factors : a^3-3abc-b^3-c^3

    Text Solution

    |