Home
Class 11
MATHS
Prove that: 1^2+2^2+3^2.....+n^2>(n^3)/...

Prove that: `1^2+2^2+3^2.....+n^2>(n^3)/3,``n in N`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • LINEAR INEQUATIONS

    RD SHARMA ENGLISH|Exercise All Questions|163 Videos
  • MATHEMATICAL REASONING

    RD SHARMA ENGLISH|Exercise All Questions|182 Videos

Similar Questions

Explore conceptually related problems

Prove that 1^2+2^2+dotdotdot+n^2>(n^3)/3, n in N

Prove that : 1^2+2^2+3^2++n^2=(n(n+1)(2n+1))/6

Using the principle of mathematical induction, prove that 1.3 + 2.3^(2) + 3.3^(2) + ... + n.3^(n) = ((2n-1)(3)^(n+1)+3)/(4) for all n in N .

Prove that: 1+2+3+....+ n<((2n+1)^2)/8 for all ""n in Ndot

Prove that nC_1(nC_2)^2(n C_3)^3.......(n C_n)^n le ((2^n)/(n+1))^((n+1)C_2),AAn in Ndot

Prove that: \ ^(2n)C_n=(2^n[1. 3. 5 (2n-1)])/(n !)

Prove that : 1^3+2^3+3^3++n^3={(n(n+1))/2}^2dot

Using the principle of mathematical induction prove that : 1. 3+2. 3^2+3. 3^3++n .3^n=((2n-1)3^(n+1)+3)/4^ for all n in N .

Using the principle of mathematical induction, prove that 1.2+2.3+3.4+......+n(n+1)=(1)/(3)n(n+1)(n+2)

Prove that 1^1xx2^2xx3^3xxxxn^nlt=[(2n+1)//3]^(n(n+1)//2),n in Ndot

RD SHARMA ENGLISH-MATHEMATICAL INDUCTION-All Questions
  1. Using principle of mathematical induction prove that sqrtn<1/sqrt1+1/s...

    Text Solution

    |

  2. Prove that: 1+2+3+....+ n<((2n+1)^2)/8 for all ""n in Ndot

    Text Solution

    |

  3. Prove that: 1^2+2^2+3^2.....+n^2>(n^3)/3,n in N

    Text Solution

    |

  4. A sequence x0, x1,x2,x3, ddot is defined by lettingx0=5 and xk=4+x(k-1...

    Text Solution

    |

  5. Prove by the principle of mathematical induction that n<2^n"for all"n ...

    Text Solution

    |

  6. Prove by the principle of mathematical induction that for all n in N ...

    Text Solution

    |

  7. Using the principle of mathematical induction, prove that : 1. 2. 3+2...

    Text Solution

    |

  8. Prove the following by using the principle of mathematical inductio...

    Text Solution

    |

  9. Prove that: (1+1/1)(1+1/2)(1+1/3)(1+1/n)=(n+1) for all n in Ndot

    Text Solution

    |

  10. Using principle of MI prove that 2.7^n+3.5^n-5 is divisible by 24

    Text Solution

    |

  11. Prove by the principle of mathematical induction that (n^5)/5+(n^3)/3+...

    Text Solution

    |

  12. For all positive integer n , prove that (n^7)/7+(n^5)/5+2/3n^3-n/(105)...

    Text Solution

    |

  13. If P(n) is the statement "2^(3n)-1 . Is an integral multiple 7", and i...

    Text Solution

    |

  14. Let P(n) be the statement "3^n > n" . If P(n) is true, P(n+1) is also ...

    Text Solution

    |

  15. If P(n) is the statement n^2&gt; 100" , prove that whenever P(r) is...

    Text Solution

    |

  16. Prove by the principle of mathematical induction that for all n in N ...

    Text Solution

    |

  17. Prove by the principle of mathematical induction that for all n in N ...

    Text Solution

    |

  18. Prove by the principle of mathematical induction that: n(n+1)(2n+1) is...

    Text Solution

    |

  19. Prove by the principle of mathematical induction that for all n in N ...

    Text Solution

    |

  20. Prove that : cos^2alpha+cos^2(alpha+beta)-2cosalphacosbetacos(alpha+be...

    Text Solution

    |