Home
Class 12
MATHS
3+5+7+ …..to n^(th) term is...

`3+5+7+` …..to `n^(th)` term is

A

`2 n+1`

B

`3^(n)-1`

C

`2^(n)+1`

D

`3^(n)+1`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • LINEAR PROGRAMMING

    HIMALAYA PUBLICATION|Exercise QUESTION BANK|32 Videos
  • MATHEMATICAL REASONING

    HIMALAYA PUBLICATION|Exercise Question Bank|97 Videos

Similar Questions

Explore conceptually related problems

3 + 5 + 7 + .... to n terms is

The first term of an AP is a and the n^(th) term is b, the d=

In an A.P if m^(th) term is n and n^(th) term is m, where mnen, find the p^(th) term .

IF m^(th) term of an A.P. is n and n^(th) term is m, then find p^(th) term?

In the p^(th) term of an A.P. is q and q^(th) term is p, prove that the n^(th) term is equal to p+q-n.

Show that the ratio of the sum of first n terms of a G.P. to the sum of terms from (n + 1)^("th") " to " (2n)^("th") term is 1/r^n .

Find the sum to 'n' terms if n^(th) term is given by n^(2)+2^(n)

HIMALAYA PUBLICATION-MATHEMATICAL INDUCTION AND SUMMATION OF SERIES-Question Bank
  1. If (sum n^(3))(sum n)=(sum n^(2))^(2), then

    Text Solution

    |

  2. 4^(3)+5^(3)+6^(3)+.. .+10^(3)=

    Text Solution

    |

  3. 3+5+7+ …..to n^(th) term is

    Text Solution

    |

  4. ((1)/(2) . (2)/(2))/(1^(3))+((2)/(3) . (3)/(2))/(1^(3)+2^(3)) +((3)/(2...

    Text Solution

    |

  5. The 10^(th ) term of the series 3+13+29+51+79+.. ..

    Text Solution

    |

  6. Sum to 30 terms of 3+4+8+9+13+14+18+19+.. is

    Text Solution

    |

  7. The greatest positive integer, which divides (n+1)(n+2)(n+3)(n+4) for ...

    Text Solution

    |

  8. The sum of cubes of three successive natural numbers is divisible by

    Text Solution

    |

  9. Product of 4 consecutive natural numbers is divisible by

    Text Solution

    |

  10. 49^(n)+16 n-1 is divisible by

    Text Solution

    |

  11. If n is a positive integer, then n^(3)+2n is divisible

    Text Solution

    |

  12. If n in N then 3 . 5^(2 n+1)+2^(3 n+1) is divisible by

    Text Solution

    |

  13. If n is a +ve integer, 4^(n)-3 n-1 is divisible by

    Text Solution

    |

  14. The greatest positive integer, which divides (n+1)(n+2)(n+3)(n+4) for ...

    Text Solution

    |

  15. The sum to n terms of the series (1)/(sqrt(1)+sqrt(3))+(1)/(sqrt(3)+...

    Text Solution

    |

  16. The sum of n terms of the series (3)/(1^(2))+(5)/(1^(2)+2^(2))+ (7)/(1...

    Text Solution

    |

  17. If n is odd then the sum of n terms of the series 1^(2)-2^(2)+3^(2)-...

    Text Solution

    |

  18. If log a+log (a^(2)/b)+log (a^(3)/b^(2))+.. .. n terms =(n)/(2)(P log ...

    Text Solution

    |

  19. For a natural number n which one is the correct statement?

    Text Solution

    |

  20. Sum of the series 1+(3^(2))/(2 !)+(3^(4))/(4 !)+(3^(6))/(6 !)+.. . . t...

    Text Solution

    |