Home
Class 12
MATHS
Consider the sequence 1,2,2,4,4,4,4,8,8,...

Consider the sequence 1,2,2,4,4,4,4,8,8,8,8,8,8,8,8,... Then 1025th terms will be (a)`2^9` b. `2^(11)` c. `2^(10)` d. `2^(12)`

A

`2^9`

B

`2^11`

C

`2^(10)`

D

`2^(12)`

Text Solution

Verified by Experts

The correct Answer is:
C

Let the 1025th term fallis in the nth group. Then
`1+2+4+..+2^(n-1)lt1025le1+2+4+…+2^(n)`
`rArr2^(n)lt1026le2^(n+1)`
`rArrn=10`
Hence, 1025th term is `2^(10)`.
Promotional Banner

Topper's Solved these Questions

  • PROGRESSION AND SERIES

    CENGAGE ENGLISH|Exercise EXERCIESE ( LINKED COMPREHENSION TYPE )|60 Videos
  • PROGRESSION AND SERIES

    CENGAGE ENGLISH|Exercise EXERCIESE ( NUMERICAL VALUE TYPE )|28 Videos
  • PROGRESSION AND SERIES

    CENGAGE ENGLISH|Exercise CONCEPT APPLICATION EXERICISE 5.9|9 Videos
  • PROBABILITY II

    CENGAGE ENGLISH|Exercise MULTIPLE CORRECT ANSWER TYPE|6 Videos
  • PROPERTIES AND SOLUTIONS OF TRIANGLE

    CENGAGE ENGLISH|Exercise Archives (Numerical Value Type)|3 Videos

Similar Questions

Explore conceptually related problems

If the sequence 1, 2, 2, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, ... where n consecutive terms has value n then 1025^th term is

If A={1,2,3,4,5,6,7,8} and B={1,3,4,6,7,8,9} then

If X={1,2,3,4} , Y={2,3,5,7}, Z={3,6,8,9},W={2,4,8,10}, then

Find the n^(th) term of the series : 1,2,4,8, . . . . . . . . .

If A={1,2,3,4,5},\ B={4,5,6,7,8},\ C={7,8,9, 10 , 11}a n d\ D={10 , 11 , 12 , 13 , 14} . Find: Ann(BuuC)

Find the inverse of the matrix A=[[8,4,2],[2,9,4],[1,2,8]]

Find the mode of the following data. 3,7,4,5,9,1,7,2,2,8,1,2,4,7,7,12,11,9,8,4,7

Consider the following sets varphi,\ A={1,2}, B={1,4,8}, C={1,2,4,6,8} . Insert the correct symbol suba n d\ between each of the following pair of sets: A ...C

Consider the following sets varphi,\ A={1,2}, B={1,4,8}, C={1,2,4,6,8} . Insert the correct symbol suba n d\ between each of the following pair of sets: A ...B

CENGAGE ENGLISH-PROGRESSION AND SERIES-EXERCIESE ( SINGLE CORRECT ANSWER TYPE )
  1. If bi=1-ai ,n a=sum(i=1)^n ai ,n b=sum(i=1)^n bi ,t h e nsum(i=1)^n ai...

    Text Solution

    |

  2. The sum 1+3+7+15+31+...to100 terms is 2^(100)-102 b b. 2^(99)-101 c. ...

    Text Solution

    |

  3. Consider the sequence 1,2,2,4,4,4,4,8,8,8,8,8,8,8,8,... Then 1025th te...

    Text Solution

    |

  4. The value of sum(i-1)^nsum(j=1)^isum(k=1)^j1=220 , then the value of n...

    Text Solution

    |

  5. If 1^2+2^2+3^2++2003^2=(2003)(4007)(334) and (1)(2003)+(2)(2002)+(3)(2...

    Text Solution

    |

  6. If tn denotes the nth term of the series 2+3+6+11+18+….. Then t50 is

    Text Solution

    |

  7. The sum of series Sigma(r=0)^(r) (-1)^r(n+2r)^2 (where n is even) is

    Text Solution

    |

  8. If (1^2-t1)+(2^2-t2)+---+(n^2-tn)=(n(n^2-1))/3 , then tn is equal to a...

    Text Solution

    |

  9. If (1+3+5++p)+(1+3+5++q)=(1+3+5++r) where each set of parentheses cont...

    Text Solution

    |

  10. If Hn=1+1/2+...+1/ndot , then the value of Sn=1+3/2+5/3+...+(99)/(50) ...

    Text Solution

    |

  11. The sum to 50 terms of the series 3/1^2+5/(1^2+2^2)+7/(1^+2^2+3^2)+...

    Text Solution

    |

  12. Let S=4/(19)+(44)/(19^2)+(444)/(19^3)+ u ptooo . Then s is equal to a....

    Text Solution

    |

  13. If 1-1/3+1/5-1/7+1/9-1/(11)+=pi/4 , then value of 1/(1xx3)+1/(5xx7)+1/...

    Text Solution

    |

  14. If 1/(1^2)+1/(2^2)+1/(3^2)+ tooo=(pi^2)/6,t h e n1/(1^2)+1/(3^2)+1/(5^...

    Text Solution

    |

  15. lim(nrarroo) Sigma(r=1)^(n) (r)/(1xx3xx5xx7xx9xx...xx(2r+1)) is equal ...

    Text Solution

    |

  16. The greatest interger by which 1+Sigma(r=1)^(30) rxxr ! is divisible...

    Text Solution

    |

  17. If Sigma(r=1)^(n) r^4=I(n), " then "Sigma(r=1)^(n) (2r -1)^4 is equal ...

    Text Solution

    |

  18. Value of lim(ntooo)(1+1/3)(1+1/(3^2))(1+1/(3^4))(1+1/(3^8))oo is equal...

    Text Solution

    |

  19. If x1,x2 …,x(20) are in H.P and x1,2,x(20) are in G.P then Sigma(r=1)^...

    Text Solution

    |

  20. The value of Sigma(r=1)^(n) (a+r+ar)(-a)^r is equal to

    Text Solution

    |