Home
Class 11
MATHS
Prove by using the principal of Mathemat...

Prove by using the principal of Mathematical Induction `P(n)=1+3+3^2+…..+3^(n-1)=(3^n-1)/2`is true for all `n in N`

Promotional Banner

Topper's Solved these Questions

  • PERMUTATIONS AND COMBINATIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|209 Videos
  • PROBABILITY

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|215 Videos

Similar Questions

Explore conceptually related problems

(b)Prove by the principle of mathematical induction that 3^n>2^n.

By the Principal of mathematical induction, prove that 1+5+5^2+…..+5^(n-1)=(5^n-1)/4

Consider the statement P(n):1+3+3^2+...+3^(n-1)=(3^n-1)/2 .Prove by principle of mathematical induction,that P(n) is true for all n inN

(b)Prove by principle of mathematical induction that 2+2^3+2^4+……..+2^n=2(2^n-1)

Prove the following by using the principle of mathematical induction, n(n+1)(n+5) is a multiple of 3.

Consider the following statement: P(n):a+ar+ar^2+……+ar^(n-1)=(a(r^n-1))/(r-1) Hence by using the principle of mathematical induction, prove that P(n) is true for all natural numbers n .

(a)Prove the following by using the principle of mathematical induction for all n in N:2^n<3^n .

Consider the statement '' P(n):x^n-y^n is divisible by x-y ''. Using the principal of Mathematical induction verify that P(n) is true for all natural numbers.

Using the principal of Mathematical induction, prove that 1/2+1/4+1/8+…….+1/2^n=1-1/2^n

Using principle of mathematical induction prove that n(n+1)(n+5) is a multiple of 3 for all n in N .

A N EXCEL PUBLICATION-PRINCIPLE OF MATHEMATICL INDUCTION-QUESTION BANK
  1. Prove by using the principal of Mathematical Induction P(n)=1+3+3^2+…....

    Text Solution

    |

  2. Using mathematical induction prove that 1^3+2^3+3^3+.....+n^3=[(n(n+1)...

    Text Solution

    |

  3. For all nge1, prove that 1+1/((1+2))+1/((1+2+3))+.......+1/((1+2+3+....

    Text Solution

    |

  4. For all nge1, prove that 1.2.3+2.3.4+......+n(n+1)(n+2)=(n(n+1)(n+2)(n...

    Text Solution

    |

  5. Using mathematical induction prove 1cdot3+2cdot3^2+3cdot3^3+.....+ncdo...

    Text Solution

    |

  6. Prove that by 1.2+2.3+3.4+…..+n(n+1)=(n(n+1)(n+2))/3 by using the prin...

    Text Solution

    |

  7. Using mathematical induction prove that 1cdot3+3cdot5+5cdot7+.....+(...

    Text Solution

    |

  8. Using mathematical induction prove that 1cdot2+2cdot2^2+......+ncdot...

    Text Solution

    |

  9. Using the principal of Mathematical induction, prove that 1/2+1/4+1/...

    Text Solution

    |

  10. Using mathimatical induction prove that 1/(2.5)+1/(5.8)+1/(8.11)+......

    Text Solution

    |

  11. Using mathematical induction prove that 1/(1.2.3)+1/(2.3.4)+......+1...

    Text Solution

    |

  12. Consider the following statement: P(n):a+ar+ar^2+……+ar^(n-1)=(a(r^n-...

    Text Solution

    |

  13. Using mathematical induction prove that (1+3/1)(1+5/4)(1+7/9)......(...

    Text Solution

    |

  14. Using mathematical induction prove that (1+1/1)(1+1/2)(1+1/3)......(...

    Text Solution

    |

  15. Using mathematical induction prove that 1^2+3^2+5^2+.....+(2n-1)^2=(...

    Text Solution

    |

  16. Using mathematical induction prove that 1/(1.4)+1/(4.7)+1/(7.10)+......

    Text Solution

    |

  17. Using mathematical induction prove that 1/(3.5)+1/(5.7)+1/(7.9)+.......

    Text Solution

    |

  18. For all nge1,prove that 1+2+3+……+nlt1/8(2n+1)^2

    Text Solution

    |

  19. Using principle of mathematical induction prove that n(n+1)(n+5) is a ...

    Text Solution

    |

  20. Using mathematical induction prove that 10^(2n-1)+1 is divisible by 1...

    Text Solution

    |