Question

How do I prove if $x$ is an even prime and $x \geq 10$ then $x$ is divisible by 3?

score 75 · Answer 1 · 2026-04-14 02:55:12

75

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How do I prove if $x$ is an even prime and $x \geq 10$ then $x$ is divisible by 3?

Published on 14 Apr 2026 - 2:55

score 1.5k · Answer 2 · 2026-04-14 01:16:07

1.5k

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Proof: If $x$ is odd, then $x+2$ is odd.

Published on 14 Apr 2026 - 1:16

score 49 · Answer 3 · 2026-04-12 22:47:51

49

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Does exist a proof that the well known equivalent manipulation in linear equations are really always equivalent?

Published on 12 Apr 2026 - 22:47

score 302 · Answer 4 · 2026-04-09 07:15:51

302

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understanding the solution of a given Lebesgue integration.

Published on 09 Apr 2026 - 7:15

score 81 · Answer 5 · 2026-04-15 19:18:55

81

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Let $\{x_n\}_{n=1}^\infty$ be a convergent sequence in R with limit x. Show that $\lim_{n\to\infty} 1/n \sum_{k=1}^{n} x_k = x$

Published on 15 Apr 2026 - 19:18

score 144 · Answer 6 · 2026-04-16 14:23:02

144

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Prove A \ (A ∩ B) = (A ∪ B) \ B

Published on 16 Apr 2026 - 14:23

score 12.2k · Answer 7 · 2026-04-16 18:56:10

12.2k

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Proving the inequality $|a-b| \leq |a-c| + |c-b|$ for real $a,b,c$

Published on 16 Apr 2026 - 18:56

score 1.9k · Answer 8 · 2026-04-16 10:12:03

1.9k

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Let $P(x)$ be any polynomial and suppose that $a_n \rightarrow a$. Prove $lim_{n\rightarrow\infty} P(a_n) = P(a)$

Published on 16 Apr 2026 - 10:12

score 9.1k · Answer 9 · 2026-04-15 18:12:43

9.1k

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Proving a Sequence Diverges

Published on 15 Apr 2026 - 18:12

score 2.9k · Answer 10 · 2026-04-16 10:05:20

2.9k

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Proving that $\frac{\sec\theta\cdot\sin\theta}{\tan\theta+\cot\theta}=\sin^2\theta$

Published on 16 Apr 2026 - 10:05

score 4.9k · Answer 11 · 2026-04-14 16:27:39

4.9k

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Prove that the smallest factor of an integer is prime.

Published on 14 Apr 2026 - 16:27

score 67 · Answer 12 · 2026-04-13 02:41:41

67

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Ring Embeds in Monoid Ring

Published on 13 Apr 2026 - 2:41

score 103 · Answer 13 · 2026-04-13 07:17:28

103

Views

Proving $x_i = \dfrac{\det(A_i)}{\det(A)}$

Published on 13 Apr 2026 - 7:17

score 879 · Answer 14 · 2026-04-14 14:51:56

Composite Relations - Give Examples of relations $R_1$ and $R_2$ such that $R_2 \circ R_1 = R_1 \circ R_2$ and $R_2 \circ R_1 \neq R_1 \circ R_2$

score 281 · Answer 15 · 2026-04-11 14:25:47

281

Views

How to Prove This Trigonometry Identity?

Published on 11 Apr 2026 - 14:25

List Question

How do I prove if $x$ is an even prime and $x \geq 10$ then $x$ is divisible by 3?

Proof: If $x$ is odd, then $x+2$ is odd.

Does exist a proof that the well known equivalent manipulation in linear equations are really always equivalent?

understanding the solution of a given Lebesgue integration.

Let $\{x_n\}_{n=1}^\infty$ be a convergent sequence in R with limit x. Show that $\lim_{n\to\infty} 1/n \sum_{k=1}^{n} x_k = x$

Prove A \ (A ∩ B) = (A ∪ B) \ B

Proving the inequality $|a-b| \leq |a-c| + |c-b|$ for real $a,b,c$

Let $P(x)$ be any polynomial and suppose that $a_n \rightarrow a$. Prove $lim_{n\rightarrow\infty} P(a_n) = P(a)$

Proving a Sequence Diverges

Proving that $\frac{\sec\theta\cdot\sin\theta}{\tan\theta+\cot\theta}=\sin^2\theta$

Prove that the smallest factor of an integer is prime.

Ring Embeds in Monoid Ring

Proving $x_i = \dfrac{\det(A_i)}{\det(A)}$

Composite Relations - Give Examples of relations $R_1$ and $R_2$ such that $R_2 \circ R_1 = R_1 \circ R_2$ and $R_2 \circ R_1 \neq R_1 \circ R_2$

How to Prove This Trigonometry Identity?

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