Home
Class 11
MATHS
Find the 20^(th) term of the series 2xx4...

Find the `20^(th)` term of the series `2xx4+4xx6+6xx8+`… to n terms

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

Find the 20^( th) term of the series 2 xx 4+4 xx 6+6 xx 8+. . .,+ n terms.

Find the n^(th) term of series 1.2.5+2.3.6+3.4.7.+…

Find the 20^(th) term of an arithmetic sequence if its 6^(th) term is 14 and 14^(th) term is 6.

Find the n^th term of the sequence 5,2,-1,-4,-7,…

Find the sum to n terms of the series . 1 xx 2 xx 3+2 xx 3 xx 4+3 xx 4 xx 5+. . .

Find the sum to n terms of the series 1 xx 2+2 xx 3+3 xx 4+4 xx 5 dot+

Find the sum to 'n' terms of the series 3xx8+6xx11+9xx14+…....

Find the sum to n terms of the series 3xx1^2+5xx2^2+7xx3^2+ ………

Find the sum to n terms of the series in the following n^ (th) terms is given by n(n+1)(n+4)

Find the sum to n terms of the series in the following n^ (th) terms is given by (2 n-1)^2

A N EXCEL PUBLICATION-SEQUENCES AND SERIES-QUESTION BANK
  1. If (a+bx)/(a-bx)=(b+cx)/(b-cx)=(c+dx)/(c-dx)(xne0) then show that a,b,...

    Text Solution

    |

  2. Let S be the sum P the product and R the sum of reciprocals of n terms...

    Text Solution

    |

  3. The p^(th),q^(th)and r^(th) terms of an A.P. are a,b,c respectively. S...

    Text Solution

    |

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

    Text Solution

    |

  5. If a,b,c,d are in G.P. prove that (a^n+b^n),(b^n+c^n),(c^n+d^n) are in...

    Text Solution

    |

  6. If a and b are the roots of x^2-3x+p=0 and c,d are the roots of x^2-12...

    Text Solution

    |

  7. If a,b,c are in A.P. b,c,d are in G.P. and 1/c,1/d,1/e are in A.P. pro...

    Text Solution

    |

  8. Find sum of 5 + 55 + 555 + ... to n terms.

    Text Solution

    |

  9. Find the sum of the following series upto n terms 0.6+0.66+0.666+…

    Text Solution

    |

  10. Find the 20^(th) term of the series 2xx4+4xx6+6xx8+… to n terms

    Text Solution

    |

  11. Find the sum of the 1^(st) n terms of the series 3+7+13+21+31+…

    Text Solution

    |

  12. If S1.S2.S3 are the sum of the first n natural numbers, their squares ...

    Text Solution

    |

  13. Find the sum of the following series upto n terms (1^3)/1+(1^3+2^3)/(1...

    Text Solution

    |

  14. Show that (1 xx 2^2+2 xx 3^2+. .+n xx(n+1)^2)/(1^2 xx 2+2^2 xx 3+. .+n...

    Text Solution

    |

  15. A farmer buys a used tractor for Rs. 12,000. He pays Rs. 6000 cash and...

    Text Solution

    |

  16. Shamshad Ali buys a Scooter for Rs. 22000. He pays Rs. 4000 cash and a...

    Text Solution

    |

  17. A person writes a letter to four of his friends. He asks each one of t...

    Text Solution

    |

  18. A man deposited Rs. 10000 in a bank at the rate of 5% simple interest ...

    Text Solution

    |

  19. A manufacturer reckons that the value of a machine, which costs him Rs...

    Text Solution

    |

  20. 150 workers were engaged to finish a job in a certain number of days. ...

    Text Solution

    |