Home
Class 11
MATHS
If the sum of p terms of an AP is the sa...

If the sum of p terms of an AP is the same as the sum of its q terms, show that the sum of its `(p+q)` terms is zero.

Promotional Banner

Topper's Solved these Questions

  • RELATIONS AND FUNCTIONS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|83 Videos
  • SETS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|268 Videos

Similar Questions

Explore conceptually related problems

If the sum of first 20 terms of an AP is equal to the sum of first 30 terms, then the sum of first 50 terms is.... a)50 b)20 c)0 d)80

If the 'sum of first m terms of an A . P . be n and the sum of first n terms be m , show that the sum of first m+n terms is -(m+n)

If the sum of 12 th and 22nd terms of an AP is 100 then the sum of the first 33 terms of the AP is

If the sum of first 75 terms of an AP is 2625, then the 38th term of the AP is

If m times the m^(th) term of an A.P is equal to n times its n^(th) term, show that the (m + n)^(th) term of the AP is zero.

Suppose that a, ar, ar^2,ar^3,ar^4,ar^5 are the first 6 terms of a G.P Find the ratio of the sum of the first tree terms and the sum of first 6 terms

If the m^th terms of an AP is 1/n and the n^th term is 1/m , prove that the sum of the first mn terms is 1/2(mn+1)

Suppose that a, ar , ar^2,ar^3,ar^4,ar^5 are the first 6 terms of a G.P If the ratio of the sum of first three terms and the sum of first 6 terms is 125:152 find the common ratio of the G.P

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.

if the sum of 12^th and 22^th terms of an AP is 100. Find the sum of first 33 terms.

A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
  1. If 9^(th) term of an A.P is zero, prove that its 29^(th) term is doubl...

    Text Solution

    |

  2. If m times the m^(th) term of an A.P is equal to n times its n^(th) te...

    Text Solution

    |

  3. If the sum of p terms of an AP is the same as the sum of its q terms, ...

    Text Solution

    |

  4. How many terms of the sequence 54,51,48, ...be taken so that their sum...

    Text Solution

    |

  5. Find the sum of all integers between 50 and 500 which are divisible by...

    Text Solution

    |

  6. The sum of three numbers in A.P. is -3,'and their product is 8. Find t...

    Text Solution

    |

  7. If a, b, c are in A.P, prove that 1/(bc),1/(ca),1/(ab) are also in A.P...

    Text Solution

    |

  8. If (b+c-a)/a,(c+a-b)/b,(a+b-c)/c are in A.P, prove that 1/a,1/b,1/care...

    Text Solution

    |

  9. Find the sum of odd integers from 1 to 2001

    Text Solution

    |

  10. Find the sum of all natural numbers between 100 and 1000 which are mul...

    Text Solution

    |

  11. In an A.P, the first term is 2 and the sum of the first five terms is ...

    Text Solution

    |

  12. How many terms of the A.P,-6 ,-11/2,-5,...are needed to give the sum -...

    Text Solution

    |

  13. If the m^th terms of an AP is 1/n and the n^th term is 1/m, prove that...

    Text Solution

    |

  14. If the sum of certain number of terms of the AP 25,22,19,........is 11...

    Text Solution

    |

  15. Find the sum of n terms of the AP, whose K^th term is ak=5K+1.

    Text Solution

    |

  16. If the sum of n terms of an A.P. is pn+qn^2, where p and q are constan...

    Text Solution

    |

  17. The sums of n terms of two A.P.s are in the ratio (5n + 4): (9n + 6). ...

    Text Solution

    |

  18. If the sum of p terms of an AP is the same as the sum of its q terms, ...

    Text Solution

    |

  19. The sum of the first p,q,r terms of an AP are a,b,c respectively, prov...

    Text Solution

    |

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

    Text Solution

    |