List questions from discrete-mathematics

Published on 10 Apr 2026 - 21:16

84

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Turning product sequences into factorials

Published on 12 Apr 2026 - 12:18

70

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Why is $\prod_{k=n}^{2n-3}\left(2n-k\right) = \prod_{j=3}^{n}j$?

Published on 14 Apr 2026 - 22:28

52

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Maximum cover with $k$ element

Published on 14 Apr 2026 - 20:44

54

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Find Equivalence Classes and the quotient set defined by the relationship in Reals.

Published on 26 Mar 2026 - 6:29

80

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Is it possible to find such a discrete non-cyclic mathematical function?

Published on 25 Mar 2026 - 3:07

463

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Modulo of a power set

Published on 17 Apr 2026 - 8:54

87

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number of ways to arrange 11 presents

Published on 15 Apr 2026 - 19:34

100

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Combinatorial Proof for the equation $\sum_{i=0}^j {j \choose i} 2^{j-i} = 3^j$

Published on 16 Apr 2026 - 2:49

1.4k

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Splitting a string into 2 parts such that the number of 1's in part A are equal to the number of 0's in part B.

Published on 15 Apr 2026 - 11:30

116

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seating arrangements : How many seating arrangements there is such that between every two men there is an even number of women

Published on 14 Apr 2026 - 8:21

126

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How many ways are there ...

Published on 11 Apr 2026 - 21:09

161

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How many ordered sets there are with k elements (with limitation )

Published on 12 Apr 2026 - 4:15

217

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What is the winning strategy for this problem?

Published on 25 Mar 2026 - 13:52

291

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why is $\frac{k\cdot n!}{k!(n-k)!} = \frac{n(n-1)!}{(k-1)!((n-1)-(k-1))!}$?

Published on 14 Apr 2026 - 19:14

List Question

How to prove periodicity Modulo b

Turning product sequences into factorials

Why is $\prod_{k=n}^{2n-3}\left(2n-k\right) = \prod_{j=3}^{n}j$?

Maximum cover with $k$ element

Find Equivalence Classes and the quotient set defined by the relationship in Reals.

Is it possible to find such a discrete non-cyclic mathematical function?

Modulo of a power set

number of ways to arrange 11 presents

Combinatorial Proof for the equation $\sum_{i=0}^j {j \choose i} 2^{j-i} = 3^j$

Splitting a string into 2 parts such that the number of 1's in part A are equal to the number of 0's in part B.

seating arrangements : How many seating arrangements there is such that between every two men there is an even number of women

How many ways are there ...

How many ordered sets there are with k elements (with limitation )

What is the winning strategy for this problem?

why is $\frac{k\cdot n!}{k!(n-k)!} = \frac{n(n-1)!}{(k-1)!((n-1)-(k-1))!}$?

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