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SURA PUBLICATION-COMBINATORICS AND MATHEMATICAL INDUCTION -Exercise 4.5
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- The number of ways in which a host lady invite 8 people for a par...
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- The number of parallelograms that can be formed from a set of four...
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- Everybody in a room shakes hands with everybody else. The total n...
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- Number of sides of a polygon having 44 diagonals is
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- If 10 lines are drawn in a plane such that no two of them are parallel...
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- In a plane are 10 points are there out of which 4 points are coll...
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- In .^(2n)C(3) :.^(n)C(3) = 11 : 1 then n is
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- .^((n-1)C(r) + ^((n-1)) C((r-1)) is
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- The number of ways of choosing 5 cards out of a deck of 52 which ...
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- The number of rectangles that a chessboard has
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- The number of 10 digit number that can be written by using the digit...
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- If P stands for P(r) then the sum of the series 1 + P(1) + 2P(2)...
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- The product of first n odd natural numbers equals:
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- If ''C(4),''C(5),''C(6) are in AP then value of n is
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- 1 +3 + 5 + 7 + …. 17 is equal to
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