find `7C_4`

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Find the value of .^7C_4

If .^(n)C_(5)=.^(n)C_(4) , then find .^(n)C_(7) .

If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8 } and D = { 7, 8, 9, 10 } , find A ∪ C

If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8 } and D = { 7, 8, 9, 10 } , find B ∪ C

If A = {1, 2, 3, 4}, B = {3, 4, 5, 6}, C = {5, 6, 7, 8 } and D = { 7, 8, 9, 10 } , find B ∪ C ∪ D

If .^(n)C_(7)=.^(n)C_(2) , then find .^(n)C_(2) .

If A={1,2,3,4},B={2,4,5,8} and C={3,4,5,6,7} , find B capC

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find B ∩ C

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find A ∩ C ∩ D

If A = { 3, 5, 7, 9, 11 }, B = {7, 9, 11, 13}, C = {11, 13, 15} and D = {15, 17} , find A ∩ C

CENGAGE PUBLICATION-PERMUTATIONS AND COMBINATIONS-All Questions
  1. If N is the number of ways in which a person can walk up a stairwa...

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  2. If, ^n Cr=84 , and ^n C(r-1)=36,and ^n C(r+1)=126 , then find the val...

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  3. find 7C4

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  4. Find the number of ways in which 22 different books can be given to 5 ...

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  5. Consider the convex polygon, which has 35 diagonals. Then match the ...

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  6. Find 5C0

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  7. Consider a 6xx6 chessboard. Then match the following columns. Column I...

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  8. Ten persons amongst whom are A,B and C are to speak at a function the ...

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  9. In how many ways can three persons, each throwing a single dice once, ...

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  10. In how many ways can a team of 11 players be formed out of 25 playe...

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  11. Find the number of positive integral solutions of the inequality 3x+y+...

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  12. How many integers between 1 and 10,00,000 have the sum of the digits e...

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  13. Statement 1: Number of terms in the expansion of (x+y+z+w)^(50) is ""^...

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  14. Find the number of seven letter words that can be formed by using the ...

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  15. The number of ways in which 10 candidates A1,A2, A(10) can be rank...

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  16. There are six teachers. Out of them two are primary teacher, two are ...

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  17. In the decimal system of numeration of six-digit numbers in which t...

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  18. There are 2 identical white balls, 3 identical red balls, and 4 green ...

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  19. To fill 12 vacancies, there are 25 candidates of which 5 are from sc...

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  20. Find the number of ways in which 6 boys and 6 girls can be seated in a...

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