Home
Class 10
MATHS
The common difference of an A.P., the ...

The common difference of an A.P., the sum of whose `n` terms is `S_n` , is `(a) S_n-2S_(n-1)+S_(n-2)` (b) `S_n-2S_(n-1)-S_(n-2)` (c) `S_n-S_(n-2)` (d) `S_n-S_(n-1)`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • AREAS RELATED TO CIRCLES

    RD SHARMA ENGLISH|Exercise All Questions|251 Videos

  • CIRCLES

    RD SHARMA ENGLISH|Exercise All Questions|131 Videos

Similar Questions

Explore conceptually related problems

The n t h term of an A.P., the sum of whose n terms is S_n , is (a) S_n+S_(n-1) (b) S_n-S_(n-1) (c) S_n+S_(n+1) (d) S_n-S_(n+1)

Write the n t h term of an A.P. the sum of whose n terms is S_n .

If S_n , be the sum of n terms of an A.P ; the value of S_n-2S_(n-1)+ S_(n-2) , is

If S_n denotes the sum of n terms of an A.P. whose common difference is d and first term is a, find S_n-2S_(n-1)+S_(n-2)

If S_n, denotes the sum of n terms of an A.P. , then S_(n+3)-3S_(n+2)+3S_(n+1)-S_n=

Let S_n denote the sum of first n terms of an AP and 3S_n=S_(2n) What is S_(3n):S_n equal to?

If S_n denotes the sum of n terms of A.P., then S_(n+3)-3S_(n+2)+3S_(n+1)-S_n= (a) S_2-n b. S_(n+1) c. 3S_n d. 0

If S_(k) denotes the sum of first k terms of a G.P. Then, S_(n),S_(2n)-S_(n),S_(3n)-S_(2n) are in

Let S_n denote the sum of first n terms of an A.P. and S_2n = 3S_n then ratio of S_3n : S_n

Let S_n denote the sum of first n terms of an AP and 3S_n=S_(2n) What is S_(3n):S_n equal to? What is S_(3n):S_(2n) equal to?

RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions
  1. The 9t h term of an A.P. is 449 and 449th term is 9. The term which...

    Text Solution

    |

  2. The n t h term of an A.P., the sum of whose n terms is Sn , is (a) S...

    Text Solution

    |

  3. The common difference of an A.P., the sum of whose n terms is Sn , i...

    Text Solution

    |

  4. If the sums of n terms of two arithmetic progressions are in the...

    Text Solution

    |

  5. If Sn denote the sum of n terms of an A.P. with first term a and c...

    Text Solution

    |

  6. If the first term of an A.P. is a and n t h term is b , then its c...

    Text Solution

    |

  7. The sum of first n odd natural numbers is 2n-1 (b) 2n+1 (c) n^2 ...

    Text Solution

    |

  8. Two A.P.’s have the same common difference. The first term of one o...

    Text Solution

    |

  9. If 18 ,\ a ,\ b ,\ -3 are in A.P., the a+b= (a) 19 (b) 7 (c) 11 (d...

    Text Solution

    |

  10. If (5+9+13+\ ddotto\ n\ t e r m s)/(7+9+11+\ ddotto\ (n+1)t e r m s)=(...

    Text Solution

    |

  11. The sum of n terms of an A.P. is 3n^2+5n , then 164 is its (a) 2...

    Text Solution

    |

  12. If the n^(t h) term of an A.P. is 2n+1 , then the sum of first n...

    Text Solution

    |

  13. If 18 t h and 11 t h term of an A.P. are in the ratio 3\ :2 , then ...

    Text Solution

    |

  14. The sum of first 20 odd natural numbers is (a) 100       (b) 210  ...

    Text Solution

    |

  15. The common difference of the A.P. is 1/(2q),(1-2q)/(2q),(1-4q)/(2q),...

    Text Solution

    |

  16. The common difference of the A.P. 1/3,(1-3b)/3,(1-6b)/3,\ dot is (...

    Text Solution

    |

  17. The common difference of the A.P. 1/(2b),(1-6b)/(2b),(1-12 b)/(2b),......

    Text Solution

    |

  18. If k ,\ 2k-1 and 2k+1 are three consecutive terms of an A.P., the va...

    Text Solution

    |

  19. The next term of the AP sqrt(7), sqrt(28), sqrt(63),… is

    Text Solution

    |

  20. The first three terms of an A.P. respectively are 3y-1,\ 3y+5 and 5y...

    Text Solution

    |