Question

Proof using iduction: calculate sum of digits

score 71 · Answer 1 · 2026-04-09 13:32:08

71

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Proof using iduction: calculate sum of digits

Published on 09 Apr 2026 - 13:32

score 68 · Answer 2 · 2026-04-14 08:02:13

68

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Is this a legit form of induction?

Published on 14 Apr 2026 - 8:02

score 41 · Answer 3 · 2026-04-13 21:01:12

41

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Inductive Proof Confusion

Published on 13 Apr 2026 - 21:01

score 480 · Answer 4 · 2026-04-15 13:58:00

480

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Proving $n!$ is never divisible by $2^n$

Published on 15 Apr 2026 - 13:58

score 336 · Answer 5 · 2026-04-17 07:53:05

336

Views

Show that $1^3 + 2^3 + ... + n^3 = (n(n+1)/2)^2$ by induction

Published on 17 Apr 2026 - 7:53

score 348 · Answer 6 · 2026-04-17 09:01:46

348

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Prove by induction that $T(n) = T(9n/20) + T(n/2) + c$ is of order $O(n)$

Published on 17 Apr 2026 - 9:01

score 40 · Answer 7 · 2026-04-12 10:06:51

40

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How Can This Be Proven By Induction?

Published on 12 Apr 2026 - 10:06

score 511 · Answer 8 · 2026-04-10 12:18:52

511

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Trouble understanding Legendre's formula and inductive proof of it

Published on 10 Apr 2026 - 12:18

score 110 · Answer 9 · 2026-04-14 23:01:30

110

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Lebesgue-measure: Prove $\lambda(A) + \lambda(B) \le \lambda(A + B)$ for $A = \bigcup_{k=1}^{n_1} I_k$, $B = \bigcup_{k=1}^{n_2} J_k$

Published on 14 Apr 2026 - 23:01

score 45 · Answer 10 · 2026-04-13 12:18:24

45

Views

Is this inductive proof correct?

Published on 13 Apr 2026 - 12:18

score 2.4k · Answer 11 · 2026-04-14 00:26:57

2.4k

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Prove $\frac{k^7}7+\frac{k^5}5+\frac{2k^3}3-\frac k{105}$ is a integer by mathematical induction

Published on 14 Apr 2026 - 0:26

score 1.4k · Answer 12 · 2026-04-14 01:26:15

1.4k

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Prove that $\sum_{k=1}^n k(3k-1)=n^2(n+1)$

Published on 14 Apr 2026 - 1:26

score 414 · Answer 13 · 2026-04-16 02:50:11

414

Views

Prove using induction: $\prod_{k=1}^n\cos\frac{x}{2^k}=\frac{\sin x}{2^n\sin\frac{x}{2^n}}$

Published on 16 Apr 2026 - 2:50

score 55 · Answer 14 · 2026-04-16 01:09:36

55

Views

Proof by induction - $3.2 10^{-6} n! - 352.5 \le n!$

Published on 16 Apr 2026 - 1:09

score 146 · Answer 15 · 2026-04-12 16:35:03

146

Views

Stuck trying to prove an inequality regarding the product of factorials

Published on 12 Apr 2026 - 16:35

List Question

Proof using iduction: calculate sum of digits

Is this a legit form of induction?

Inductive Proof Confusion

Proving $n!$ is never divisible by $2^n$

Show that $1^3 + 2^3 + ... + n^3 = (n(n+1)/2)^2$ by induction

Prove by induction that $T(n) = T(9n/20) + T(n/2) + c$ is of order $O(n)$

How Can This Be Proven By Induction?

Trouble understanding Legendre's formula and inductive proof of it

Lebesgue-measure: Prove $\lambda(A) + \lambda(B) \le \lambda(A + B)$ for $A = \bigcup_{k=1}^{n_1} I_k$, $B = \bigcup_{k=1}^{n_2} J_k$

Is this inductive proof correct?

Prove $\frac{k^7}7+\frac{k^5}5+\frac{2k^3}3-\frac k{105}$ is a integer by mathematical induction

Prove that $\sum_{k=1}^n k(3k-1)=n^2(n+1)$

Prove using induction: $\prod_{k=1}^n\cos\frac{x}{2^k}=\frac{\sin x}{2^n\sin\frac{x}{2^n}}$

Proof by induction - $3.2 10^{-6} n! - 352.5 \le n!$

Stuck trying to prove an inequality regarding the product of factorials

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