Home
Class 11
MATHS
If .^(n)C(12) = .^(n)C(9) " find " .^(2...

If `.^(n)C_(12) = .^(n)C_(9) " find " .^(21) C_(n)`

Text Solution

Verified by Experts

The correct Answer is:
1
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COMBINATORICS AND MATHEMATICAL INDUCTION

    PREMIERS PUBLISHERS|Exercise EXERCISE 4.4|14 Videos

  • COMBINATORICS AND MATHEMATICAL INDUCTION

    PREMIERS PUBLISHERS|Exercise EXERCISE 4.5|25 Videos

  • COMBINATORICS AND MATHEMATICAL INDUCTION

    PREMIERS PUBLISHERS|Exercise EXERCISE 4.2|33 Videos

  • BINOMIAL THEOREMN,SEQUENCES AND SERIES

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE(Choose the correct option for the following)|31 Videos

  • DIFFEREMTIAL CALCULUS DIFFERENTIABILITY AND METHODS OF DIFFERENTITAION

    PREMIERS PUBLISHERS|Exercise PROBLEMS FOR PRACTICE|73 Videos

Similar Questions

Explore conceptually related problems

If .^(n)C_(8)=^(n)C_(6) , then find .^(n)C_(2) .

If ""^(n)C_(4)=""^(n)C_(6) find ""^(12)C_(n) .

Knowledge Check

  • If .^(n)C_(12) =^(n)C_(8) then n = . . . . .

    A
    12
    B
    6
    C
    4
    D
    20

    • Similar Questions

    Explore conceptually related problems

    If ""^(n)C_(8)=""^(n)C_(2) , find ""^(n)C_(2) .

    Prove that .^(n)C_(1) + 2 .^(n)C_(2) + 3 .^(n)C_(3) + "…." + n . ^(n)C_(n) = n 2^(n-1) .

    If ""^(n)C_(9)=""^(n)C_(8) , find ""^(n)C_(17) .

    Find the sum 1.^(n)C_(0) + 3 .^(n)C_(1) + 5.^(n)C_(2) + "….." + (2n+1).^(n)C_(n) .

    If .^(n)C_(r-1)=36, .^(n)C_(r)=84 and .^(n)C_(r+1)=126 , find n and r.

    Prove that .^(n)C_(0) +5 xx .^(n)C_(1) + 9 xx .^(n)C_(2) + "…." + (4n+1) xx .^(n)C_(n) = (2n+1) 2^(n) .

    In ""_(n)C_(12)=""_(n)C_(8) then n=

    Home
    Profile