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Evaluate : ""^(13)C(10)...

Evaluate : `""^(13)C_(10)`

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Evaluate (i) ""^(10)C_(4)+""^(10)C_(5) (ii) ""^(13)C_(6)+ ""^(13)C_(5) (iii) ""^(19)C_(17)+ ""^(19)C_(18) .

Evaluate : 2^(10)C_(0)+(2^(2).^(10)C_(1))/(2)+(2^(3).^(10)C_(2))/(3)+ . . .+(2^(11).^(10)C_(10))/(11)

Evaluate: (6/13)^(10)-:[(6/13)^(5)]^(2)=

Evaluate : ""^10C_1 + ""^10C_2 + ""^10C_3 + …. + ""^10C_10

Evaluate ""^(10)C_1 + ""^(10)C_2 + ""^(10)C_3 + ………+""^10C_10

Evaluate: ^10C_5

If ""^(n)C_(10)=""^(n)C_(13) , then find the value of ""^(n)C_(2)

AAKASH INSTITUTE-PERMUTATIONS AND COMBINATIONS -Try Yourself
  1. If all the permutations of the lettters of the word INDIA are arranged...

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  2. Evaluate : ""^(75)C(73)

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  3. Evaluate : ""^(13)C(10)

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  4. Find n if ""^(n)C(4)=""^(n)C(6)

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  5. If ""^(n)C(10)=""^(n)C(13) , then find the value of ""^(n)C(2)

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  6. If ""^(15)C(x)=""^(15)C(x+3) , then find the value of X.

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  7. Find ""^(18)C(3)+^(18)C(2)

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  8. Verify that ""^(9)C(5)+""^(9)C(4)=""^(10)C(5)

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  9. If .^(n)C(r-1): .^(n)C(r): .^(n)C(r+1)=3:4:5, find the values of n and...

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  10. Prove that : (""^(n)C(r+1))/(""^(n)C(r))=(n-r)/(r+1)

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  11. In how many ways a committee of 7 members can be selected from 10 memb...

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  12. From a class of 30 student , 3 are to be chosen for a competition . In...

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  13. Find the number of diagonals that can be drawn by joining the angular ...

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  14. Find the number of sides of a polygon having 44 diagonals.

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  15. How many committee of 5 members each can be formed with 8 officials an...

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  16. Out of 7 consonants and 4 vowels, words are to be formed by involving ...

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  17. A box contain 5 different red and 6 different white balls. In how many...

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  18. A commttee of 8 is to be formed from 6 women and 5 men. In how many wa...

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  19. Out of the 12 professors a committee of 5 professors is to be formed ....

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  20. From a class of 12 girls and 15 boys, 12 students are to be chosen for...

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