Home
Class 12
MATHS
Let S(n) denote the sum of first n-terms...

Let `S_(n)` denote the sum of first n-terms of an arithmetic progression. If `S_(10) = 530, S_(5) = 140` then `S_(20) - S_(6)` is equal to :

A

1862

B

1842

C

1852

D

1872

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise MATHEMATICS (SECTION-B)|40 Videos
  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise Mathematics Section A|40 Videos
  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise MATHEMATICS|30 Videos
  • JEE MAINS 2020

    JEE MAINS PREVIOUS YEAR|Exercise MATHEMATICS|250 Videos
  • JEE MAINS 2022

    JEE MAINS PREVIOUS YEAR|Exercise MATHEMATICS (SECTION - B)|10 Videos

Similar Questions

Explore conceptually related problems

Let S_n denote sum of first n-terms of an A.P where S_(10) =530 , S_(5) =140 then find S_(20) - S_(6)

Let S_(n) be the sum of the first n terms of an arithmetic progression .If S_(3n)=3S_(2n) , then the value of (S_(4n))/(S_(2n)) is :

If S_(n) denotes the sum of first n terms of an AP, then prove that S_(12)=3(S_(8)-S_(4)).

Let S_(n) denote the sum of the first "n" terms of an arithmetic progression.If S_(10)=390 and the ratio of the tenth and the fifth terms is 15:7 ,then S_(15)-S_(5) is equal to:

Let S_(n) denote the sum of the first n terms of an AP. If S_(4) = 16 and S_(6) = -48 , then S_(10) is equal to

If S_(n) denotes the sum of first n terms of an A.P.prove that S_(12)=3(S_(8)-S_(4))

If S_n denotes sum of first n terms of an A.P. such that, S_(20) = 790, S_(10) = 145 then S_(15) - S_5

If S_(n) denotes the sum of the first n terms of an A.P.prove that S_(30)=3(S_(20)-S_(10)).

Let S_(n) denote the sum of the first n terms of an A.P.. If S_(4)=16 and S_(6)=-48, then S_(10) is equal to :

JEE MAINS PREVIOUS YEAR-JEE MAINS 2021-MATHEMATICS (SECTION-A)
  1. Let L be the line of intersection of planes vec(r).(hat(i) - hat(j) + ...

    Text Solution

    |

  2. Let S(n) denote the sum of first n-terms of an arithmetic progression....

    Text Solution

    |

  3. Let f : R rarr R be defined as f(x) = {{:(-(4)/(3)x^(3) + 2x^(2) + ...

    Text Solution

    |

  4. Let y = y(x) be the solution of the differential equation "cosec"^(2) ...

    Text Solution

    |

  5. Four dice are thrown simultaneously and the numbers shown on these dic...

    Text Solution

    |

  6. Let a vector vec(a) be coplanar with vectors vec(b) = 2hat(i) + hat(j)...

    Text Solution

    |

  7. If int(0)^(100pi)(sin^(2)x)/(e^(((x)/(pi)-[(x)/(pi)]))) dx = (alpha pi...

    Text Solution

    |

  8. Let three vectors vec(a), vec(b) and vec(c ) be such that vec(a) xx v...

    Text Solution

    |

  9. The values of lambda and mu such that the system of equations x + y + ...

    Text Solution

    |

  10. If the shortest distance between the straight lines 3(x-1) = 6(y-2) = ...

    Text Solution

    |

  11. Which of the following Boolean expressions is not a tautology ?

    Text Solution

    |

  12. Let A = [a(ij)] be a real matrix of order 3 xx 3, such that a(i1) + a...

    Text Solution

    |

  13. Let [x] denote the greatest integer less than or equal to x. Then, the...

    Text Solution

    |

  14. Let the circle S : 36x^(2) + 36y^(2) - 108 x + 120 y + C = 0 be such t...

    Text Solution

    |

  15. If 'n' is the number of solution of z^2+3barz=0 where zinC then find s...

    Text Solution

    |

  16. The number of solutions of sin^(7)x + cos^(7)x = 1, x in [0, 4pi] is e...

    Text Solution

    |

  17. If the domain of the function f(x) = (cos^(-1)sqrt(x^(2) - x + 1))/(sq...

    Text Solution

    |

  18. Let f : R rarr R be defined as f(x) = {{:((x^(3))/((1-cos 2x)^(2)) log...

    Text Solution

    |

  19. Let a line L : 2x + y = k, k gt 0 be a tangent to the hyperbola x^(2) ...

    Text Solution

    |

  20. If E1:x^2/a^2+y^2/b^2=1 , agtb . E2 is an ellipse which touches E1 at ...

    Text Solution

    |