Home
Class 11
MATHS
If the sum of n terms of an A.P. is 3n^2...

If the sum of n terms of an A.P. is `3n^2 + 5n` and its `m^(th)` term is 164, find the value of m.

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

If the sum of n terms of an A.P. is 3n^2 + 2n : Find the rth term.

The sum of n terms of an A.P. is 3n^2 + 4n . Find the A.P.

The sum of n terms of an A.P. is 136, the common difference is 4 and the last term is 31, find the number of terms.

If the sum of first 7 terms of an AP is 49 and that of 17, terms is 289, find the sum of first n terms.

Find the sum of 40 terms of an A.P. whose third term is 1 and 6th term is - 11.

Find the sum of 32 terms of an A.P. whose third term is 1 and the 6th term is -11.

If the sum of n terms of an A.P. is (pn+qn^2) , where p and g are constants, find the common difference.

If the sum of n terms of an A.P. is (pn + qn^2) , where p and q are constants, find the common difference.

The first term of an A.P. is 5 and its 100th term is - 292. Find the 50th term of this A.P.

PSEB-SEQUENCES AND SERIES-EXERCISE
  1. Sum of the first p, q and r terms of an A.P. are a, b and c, respectiv...

    Text Solution

    |

  2. The ratio of the sums of m and n terms of an A.P. is m^2: n^2. Show th...

    Text Solution

    |

  3. If the sum of n terms of an A.P. is 3n^2 + 5n and its m^(th) term is 1...

    Text Solution

    |

  4. Insert five numbers between 8 and 26 such that the resulting sequence ...

    Text Solution

    |

  5. If (a^n+b^n)/(a^(n-1)+b^(n-1)) is the A.M. between a and b, then find ...

    Text Solution

    |

  6. Between 1 and 31, m numbers have been inserted in such a way that the ...

    Text Solution

    |

  7. A man starts repaying a loan as first instalment of Rs. 100. If he inc...

    Text Solution

    |

  8. The difference between any two consecutive interior angles of a polygo...

    Text Solution

    |

  9. Find the 20th and nth terms of the G.P. 5/2,5/4,5/8,.....

    Text Solution

    |

  10. Find the 12th term of a G.P. whose 8th term is 192 and the common rati...

    Text Solution

    |

  11. The 5th, 8th and 11th terms of a G.P. are p, q and x, respectively. Sh...

    Text Solution

    |

  12. The 4th term of a G.P. is square of its second term, and the first ter...

    Text Solution

    |

  13. Which term of the following sequence:- 2,2sqrt2,4,.....is 128?

    Text Solution

    |

  14. Which term of the following sequence:- sqrt3,3,3sqrt3,....is 729?

    Text Solution

    |

  15. Which term of the following sequence:- 1/3,1/9,1/27,.....is 1/19683 ?

    Text Solution

    |

  16. For what values of x, the numbers -2/7,x, -7/2 are in G.P.?

    Text Solution

    |

  17. Find the sum to indicated number of terms of the geometric progression...

    Text Solution

    |

  18. Find the sum to indicated number of terms of the geometric progression...

    Text Solution

    |

  19. Find the sum to indicated number of terms of the geometric progression...

    Text Solution

    |

  20. Find the sum to indicated number of terms of the geometric progression...

    Text Solution

    |