Home
Class 12
MATHS
Let n be an odd natural number greater t...

Let `n` be an odd natural number greater than 1. Then , find the number of zeros at the end of the sum `99^n+1.`

Text Solution

Verified by Experts

The correct Answer is:
2 zeroes

`1+99^(n) = 1+(100-1)^(n)`
`= 1+[.^(n)C_(0)100^(n) - .^(n)C_(1) 100^(n-1)+.^(n)C_(2) 100^(n+2)+"….."-.^(n)C_(n)]`
[`:'` n is odd]
`= 100[.^(n)C_(0) 100^(n-1)-.^(n)C_(1) 100^(n-2) + "….." + .^(n)C_(n-1)]`
`= 100 xx "integer"`
Hence, the number of zeros, at the end of the sum `99^(n) + 1` is `2`.
Promotional Banner

Topper's Solved these Questions

  • BINOMIAL THEOREM

    CENGAGE|Exercise Exercise 8.3|7 Videos
  • BINOMIAL THEOREM

    CENGAGE|Exercise Exercise 8.4|13 Videos
  • BINOMIAL THEOREM

    CENGAGE|Exercise Exercise 8.1|17 Videos
  • AREA UNDER CURVES

    CENGAGE|Exercise Question Bank|20 Videos
  • BINOMIAL THEORM

    CENGAGE|Exercise Question Bank|31 Videos

Similar Questions

Explore conceptually related problems

The number of zeros at the end of 99^(100) - 1 is -

Number of zeroes at the end of 99^(1001)+1?

If n is an odd number greater than 1, then n(n^(2)-1) is

A natural number is greater than the other by 5. The sum of their squares is 73. find the numbers.

If n is an odd natural number greater than 1 then the product of its successor and predecessor is an odd natural number (b) is an even natural number can be even or odd (d) None of these

The sum of first n odd natural numbers is

Let n be the smallest nonprime number greater than 1 with no prime factor less than 10. Then

The square of any odd natural number other than 1 can be expressed as the sum of two consecutive natural numbers.