Home
Class 11
MATHS
If sum(r=1)^(n) r=210, then : sum(r=1)^(...

If `sum_(r=1)^(n)` r=210, then : `sum_(r=1)^(n) r^(2)`=

A

2870

B

2160

C

2970

D

2960

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SEQUENCES AND SERIES

    MARVEL PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|81 Videos

  • QUESTION PAPER 2018

    MARVEL PUBLICATION|Exercise QUESTION|50 Videos

  • SETS, RELATIONS AND FUNCTIONS

    MARVEL PUBLICATION|Exercise MCQs|139 Videos

Similar Questions

Explore conceptually related problems

If sum_(r=1)^(n)I(r)=2^(n)-1 then sum_(r=1)^(n)(1)/(I_(r)) is

Let sum_(r=1)^(n)r^(4)=f(n)," then " sum_(r=1)^(n) (2r-1)^(4) is equal to

If S_(1)= sum_(r=1)^(n) r , S_(2) = sum_(r=1)^(n) r^(2),S_(3) = sum_(r=1)^(n)r^(3) then : lim_(n to oo ) (S_(1)(1+(S_(8))/8))/((S_(2))^(2)) =

sum_(r=1)^(n)(3^(r)-r)=

If sum_(r=1)^(n)cos^(-1)x_(r)=0, then sum_(r=1)^(n)x_(r) equals to

Let sum_(r=1)^(n) r^(6)=f(n)," then "sum_(n=1)^(n) (2r-1)^(6) is equal to

If sum_(r=1)^n r=55 ,\ fin d\ sum_(r=1)^n r^3dot

If sum_(r=1)^(n) r(sqrt(10))/(3)sum_(r=1)^(n)r^(2),sum_(r=1)^(n) r^(3) are in G.P., then the value of n, is

sum_(r=1)^(n)r^(3)=f(n) then sum_(r=1)^(n)(2r-1)^(3) is equal to

MARVEL PUBLICATION-SEQUENCES AND SERIES -MULTIPLE CHOICE QUESTIONS
  1. 60^(2)-59^(2)+58^(2)-57^(2)+ cdots +2^(2)-1^(2) =

    Text Solution

    |

  2. 40^(3)-38^(3)+36^(3)-34^(3)+ cdots +4^(3)-2^(3)=

    Text Solution

    |

  3. If sum(r=1)^(n) r=210, then : sum(r=1)^(n) r^(2)=

    Text Solution

    |

  4. sum(r=1)^(20) r (2r+1)=

    Text Solution

    |

  5. sum(r=1)^(10) (4r-3)^(2) =

    Text Solution

    |

  6. Find the sum of the following series: 5+55+555+ to\ n\ t e r m sdot

    Text Solution

    |

  7. 1.2+3.02+5.002+7.0002+ cdots to n terms =

    Text Solution

    |

  8. 1^(3)+2^(3)+3^(3)+ cdots +20^(3)=

    Text Solution

    |

  9. 7^(2)+8^(2)+9^(2)+...+20^(2)=

    Text Solution

    |

  10. 11^(2)+12^(2)+13^(2)+ cdots +32^(2)=

    Text Solution

    |

  11. Suppose that F(n +1) =( 2f(n)+1)/2 for n = 1, 2, 3,.....and f(1)= 2 ...

    Text Solution

    |

  12. If a, b, c, d, e, f are in А.Р., then e-c is equal to

    Text Solution

    |

  13. If the middle term amongst any odd number (n) consecutive terms of an ...

    Text Solution

    |

  14. The sum of all 2 digit odd numbers is

    Text Solution

    |

  15. The middle term of the progression 20,16,12, cdots , -176,-180 is (a)-...

    Text Solution

    |

  16. If the first and the last terms of an A.P. are -4 and 146 respectivel...

    Text Solution

    |

  17. The sum of an A.P. is 525. If its first term is 3 and the last term is...

    Text Solution

    |

  18. If the first term of an A.P. is 100 and the sum of its first 6 terms i...

    Text Solution

    |

  19. Sum of all two digit numbers which when divided by 4 yield unity as re...

    Text Solution

    |

  20. If the sum of any number of consecutive terms of a sequence is always ...

    Text Solution

    |