Home
Class 12
MATHS
(666 …. N digits)^(2) + (888 …. N digits...

`(666 …. N digits)^(2)` + (888 …. N digits ) =

A

`(4)/(9) (10^(n) - 1)`

B

`(4)/(9)(10^(2n) - 1) `

C

`(4)/(9) (10^(n) - 1)^(2)`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • RELATIONS

    DIPTI PUBLICATION ( AP EAMET)|Exercise Exercise|49 Videos

  • SETS ( APPENDIX - 1)

    DIPTI PUBLICATION ( AP EAMET)|Exercise EXERCISE|70 Videos

Similar Questions

Explore conceptually related problems

How many 2 digit even numbers can be formed from the digits 1, 2, 3, 4, 5 if the digits can be repeated?

How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?

A : the sum of all 4 digited numbers that can can be formed using the digits the difits 1,2,4,5,6 without repetition is 479952 R :: Sum of all r digits numbers formed by taking the given n digits ( without zero ) is ( sum of all the n digits ) xx ""^(n-1) P_(r-1) xx (111 . . . r times ).

The sum of two digit number and the number obtained by reversing the digits is 66. If the digits of the number differ by 2, Find the number. How many such numbers are there?

Find the number of 4-digit numbers that can be formed using the digits 1, 2, 3, 4, 5 if no digit is repeated. How many of these will be even?

The sum of a two digit number and the number obtained by reversing the digits is 66. If the digits of the number differ by 2, find the number. How many such numbers are there?

How many 4-digit numbers can be formed by using the digits 1 to 9 if repetition of digits is not allowed?

Sum of all three digit number ( no digits being zero ) having the property that all digits are perfect squares , is

The total number of 4 digit numbers in which the digits are in descending order is

DIPTI PUBLICATION ( AP EAMET)-SEQUENCES AND SERIES -EXERCISE
  1. The value of n for which 704 + (1)/(2) (704) + (1)/(4)(704) + ….. Upto...

    Text Solution

    |

  2. The positive integer n for which 2 . 2^(2) + 3 . 2^(3) + 4 . 2^(4) + ....

    Text Solution

    |

  3. (666 …. N digits)^(2) + (888 …. N digits ) =

    Text Solution

    |

  4. If the sum of three numbers in a G.P is 26 and the sum of products two...

    Text Solution

    |

  5. If 0 lt phi lt pi//2 , and x = sum(n = 0)^(infty) cos^(2n) phi, y = su...

    Text Solution

    |

  6. If the sum of three numbers in G.P is 21 and their product is 216, the...

    Text Solution

    |

  7. If the sum of three numbers in G.P is 7/64 and the product of the extr...

    Text Solution

    |

  8. If pth, qth, rth terms of an A.P are a,b,c then a(q - r ) + b(r - p ) ...

    Text Solution

    |

  9. Let S(1),S(2),S(3), …. Are squares such that for each nge1, The lengt...

    Text Solution

    |

  10. In G.P (p + q)th term is m, (p -q)th term is n, then pth terms is

    Text Solution

    |

  11. If 2pth term of a G.P is q^(2) and 2qth term is P^(2) , then (p + q)th...

    Text Solution

    |

  12. If g(1), g(2), g(3) are three geometric means between two positive num...

    Text Solution

    |

  13. What is the G.M. of 6 and 24?

    Text Solution

    |

  14. One of the 5 geometric means between (1)/(3) and 243 is

    Text Solution

    |

  15. If x,y,z are the three geometric means between 6,54, then z =

    Text Solution

    |

  16. IF the A.M and G.M of two numbers are 13 and 12 respectively. Find the...

    Text Solution

    |

  17. Let x be the arithmetic mean y,z be the two geometric means between an...

    Text Solution

    |

  18. 10th term of the hearmenie progression is (2)/(1) + 2 (1)/(2) + 3 (1)/...

    Text Solution

    |

  19. If the fourth term of a H.P is 1/3 and 7th term is 1/4, then 16th term...

    Text Solution

    |

  20. If the third and seventh terms of a H.P. are 1/7, 1/15 respectively, t...

    Text Solution

    |