Question

Convert this sum to normal expression

score 93 · Answer 1 · 2026-04-13 06:51:37

93

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Convert this sum to normal expression

Published on 13 Apr 2026 - 6:51

score 136 · Answer 2 · 2026-04-14 15:22:22

136

Views

Find Expected Value of Random Variables with Indicator Variables

Published on 14 Apr 2026 - 15:22

score 92 · Answer 3 · 2026-04-14 16:22:51

92

Views

Converting summation ( how do I get from $k \cdot \sum_{j=k}^{2k} \frac{1}{j-k+1}$ to $ k \cdot \sum_{j=1}^{k+1} \frac{1}{j}$)?

Published on 14 Apr 2026 - 16:22

score 254 · Answer 4 · 2026-04-15 13:51:21

254

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Counting: How do I get the number of bit strings of length n without always having to type all of them out?

Published on 15 Apr 2026 - 13:51

score 487 · Answer 5 · 2026-04-16 17:03:06

487

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Maximum Area Covered by an S-Shaped Tiling

Published on 16 Apr 2026 - 17:03

score 43 · Answer 6 · 2026-04-17 05:30:26

43

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Expected Value: How to determine using random variables that these E(X) equations are equivalent or not?

Published on 17 Apr 2026 - 5:30

score 51 · Answer 7 · 2026-04-11 01:47:40

51

Views

Concluding about $f$ as a function $\mathbb{N}\to \mathbb{N}$ and finding complexity of a program

Published on 11 Apr 2026 - 1:47

score 275 · Answer 8 · 2026-04-12 00:28:53

275

Views

Permutations with Repetition (example)

Published on 12 Apr 2026 - 0:28

score 54 · Answer 9 · 2026-04-13 10:44:42

54

Views

Is this a Boolean algebra? (proof)

Published on 13 Apr 2026 - 10:44

score 386 · Answer 10 · 2026-04-09 16:46:01

386

Views

How to solve this nonlinear recurrence relations?

Published on 09 Apr 2026 - 16:46

score 860 · Answer 11 · 2026-04-16 05:26:56

860

Views

A route that passes through all streets of the city

Published on 16 Apr 2026 - 5:26

score 58 · Answer 12 · 2026-04-12 08:16:26

58

Views

Counting number of strings which contain two $a$'s which are not next to each other

Published on 12 Apr 2026 - 8:16

score 84 · Answer 13 · 2026-04-10 16:49:37

84

Views

Using mathematical induction to solve a problem

Published on 10 Apr 2026 - 16:49

score 358 · Answer 14 · 2026-04-17 02:34:45

358

Views

Can $27$ points be packed into a $3\times3\times3$ cube and all be more than $\sqrt{3}$ from one another?

Published on 17 Apr 2026 - 2:34

score 140 · Answer 15 · 2026-04-16 14:22:45

140

Views

If i have a $20$ digit number, what are the chances I get the same randomly generated number?

Published on 16 Apr 2026 - 14:22

List Question

Convert this sum to normal expression

Find Expected Value of Random Variables with Indicator Variables

Converting summation ( how do I get from $k \cdot \sum_{j=k}^{2k} \frac{1}{j-k+1}$ to $ k \cdot \sum_{j=1}^{k+1} \frac{1}{j}$)?

Counting: How do I get the number of bit strings of length n without always having to type all of them out?

Maximum Area Covered by an S-Shaped Tiling

Expected Value: How to determine using random variables that these E(X) equations are equivalent or not?

Concluding about $f$ as a function $\mathbb{N}\to \mathbb{N}$ and finding complexity of a program

Permutations with Repetition (example)

Is this a Boolean algebra? (proof)

How to solve this nonlinear recurrence relations?

A route that passes through all streets of the city

Counting number of strings which contain two $a$'s which are not next to each other

Using mathematical induction to solve a problem

Can $27$ points be packed into a $3\times3\times3$ cube and all be more than $\sqrt{3}$ from one another?

If i have a $20$ digit number, what are the chances I get the same randomly generated number?

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