List questions from discrete-mathematics

Published on 25 Mar 2026 - 6:04

32

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Proving that $\sum_{n=1}^m h\lVert f_n \rVert_{L^2(\Omega)} \leq T^{1/2}\lVert f \rVert_{L^2(0,T;L^2(\Omega))}$

Published on 01 Apr 2026 - 8:46

172

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Proof by induction involving trigonometric identities

Published on 28 Mar 2026 - 10:34

139

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Using summation by parts to evaluate an alternating sum

Published on 26 Mar 2026 - 12:33

121

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Onto Function Equivalence

Published on 28 Feb 2018 - 20:30

193

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In how many different orders can $n$ cars line up in a gas station of $4$ parallel gas pumps?

Published on 27 Mar 2026 - 12:03

376

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Determine all possible functions from $A = \{a,b\}$ to $B = \{x,y,z\}$. State which of these have inverses

Published on 01 Mar 2018 - 0:56

5k

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Recurrence Relation of Compound Interest

Published on 01 Apr 2026 - 11:09

55

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Generalizing a polynomial situation using combinations

Published on 28 Mar 2026 - 10:03

89

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Complete the following proof by contradiction

Published on 27 Mar 2026 - 23:23

1k

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How many different positive integers can be obtained as a sum of some or all off the numbers: $1,3,5,10,25$?

Published on 01 Mar 2018 - 18:52

335

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Use quantifiers to express and then negate

Published on 25 Mar 2026 - 2:59

78

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Showing an identity between polynomials whose coefficients involve combinatorial identities

Published on 25 Mar 2026 - 19:01

289

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Need help understanding this text

Published on 27 Mar 2026 - 2:36

174

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Solve the reccurence relation $a_n = a_{n-2}, a_0=a_1 = 1$

Published on 03 Mar 2018 - 19:31

List Question

how linearizate the product of two continuous variables?

Proving that $\sum_{n=1}^m h\lVert f_n \rVert_{L^2(\Omega)} \leq T^{1/2}\lVert f \rVert_{L^2(0,T;L^2(\Omega))}$

Proof by induction involving trigonometric identities

Using summation by parts to evaluate an alternating sum

Onto Function Equivalence

In how many different orders can $n$ cars line up in a gas station of $4$ parallel gas pumps?

Determine all possible functions from $A = \{a,b\}$ to $B = \{x,y,z\}$. State which of these have inverses

Recurrence Relation of Compound Interest

Generalizing a polynomial situation using combinations

Complete the following proof by contradiction

How many different positive integers can be obtained as a sum of some or all off the numbers: $1,3,5,10,25$?

Use quantifiers to express and then negate

Showing an identity between polynomials whose coefficients involve combinatorial identities

Need help understanding this text

Solve the reccurence relation $a_n = a_{n-2}, a_0=a_1 = 1$

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