Home
Class 11
MATHS
The value of 1000[1/(1 xx 2) + 1/(2 xx 3...

The value of `1000[1/(1 xx 2) + 1/(2 xx 3) + .........+1/(999 xx 1000)]` is equal to

A

1000

B

999

C

1001

D

1/999

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • PROBABILITY

    PATHFINDER|Exercise QUESTION BANK|41 Videos
  • QUADRATIC EQUATION

    PATHFINDER|Exercise QUESTION BANK|19 Videos

Similar Questions

Explore conceptually related problems

The value of 1000[(1)/(1xx2)+(1)/(2xx3)+(1)/(3xx4)+.....+(1)/(999xx1000)] is equal to -

The value of 2^(1/2)xx10^(-1/2)xx(16)^(1/2) is

Write 'true' or 'false': The value of cos 0^(@) xx cos 1^(@) xx cos2^(@) xx cos3^(@) xx ….. xx cos90^(@) is 1.

1+1/4 + (1xx3)/(4xx8) + (1xx3xx5)/(4xx8xx12) + "….." is equal to

Find value of the x^2 xx square = 1

Find the value of tan1^(@)xxtan2^(@)xxtan3^(@)xx.............xxtan89^(@)

State the value of 2^(1//2)xx2^(-1//2)xx(32)^(1//5) is ?

If z+1/z=2cos6^@ , then z^1000+1/[z^1000] +1 is equal to

If 1-1/3+1/5-1/7+1/9-1/(11)+=pi/4 , then value of 1/(1xx3)+1/(5xx7)+1/(9xx11)+ is pi//8 b. pi//6 c. pi//4 d. pi//36

PATHFINDER-PROGRESSION AND SERIES -QUESTION BANK
  1. If x, y , z are in A.P and tan^-1 x , tan^-1 y and tan^-1 z are also ...

    Text Solution

    |

  2. The sum of first 20 terms of the sequence 0.7 , 0.77 , 0.777,... is

    Text Solution

    |

  3. The value of 1000[1/(1 xx 2) + 1/(2 xx 3) + .........+1/(999 xx 1000)]...

    Text Solution

    |

  4. Let f : R rarr R be such that f is is injective and f(x) f(y) = f(x + ...

    Text Solution

    |

  5. Five number are in H.P. The middle term is 1 and the ratio of the seco...

    Text Solution

    |

  6. If a, b ,c are in A.P ., then the straight line ax + 2by + c=0 will al...

    Text Solution

    |

  7. Six possible number are in G.P . such that their product is 1000. If t...

    Text Solution

    |

  8. Five number are in A.P. with common difference ne 0. If the 1 st , 3 r...

    Text Solution

    |

  9. Let f(x) = x(1/(x - 1) + 1/x + 1/(x + 1)), x gt 1 , Then

    Text Solution

    |

  10. Let a1 , a2 ,... be in harmonic progression with a1 = 5 and a20 = 25. ...

    Text Solution

    |

  11. Statement 1 : The sum of the series 1 + (1 + 2 + 4)+(4 + 6 + 9) + (9...

    Text Solution

    |

  12. If 100 times the 100 th term of an AP with non zero common different e...

    Text Solution

    |

  13. Six number are in A.P. such that their sum in 3 . The first term is 4 ...

    Text Solution

    |

  14. If 64, 27 , 36 are the Pth , Qth and Rth terms of a G.P., then P + 2Q ...

    Text Solution

    |

  15. Let a, b , c, p , q , r be positive real numbers such that a , b , c a...

    Text Solution

    |

  16. Let Sk be the sum of an infinite G.P. series whose first term is k and...

    Text Solution

    |

  17. Let a1 , a2 , ...., a100 be an arithmetic progression with a1 = 3 and ...

    Text Solution

    |

  18. A man saved Rs. 200 in each of the first three months of his service. ...

    Text Solution

    |

  19. The sequence log a, log a^2/b , log a^3/b^2 , ..... is

    Text Solution

    |

  20. The harmonic mean of two numbers is 4. Their arithmetic mean A and the...

    Text Solution

    |