List questions from rational-numbers

Published on 10 Apr 2026 - 0:40

115

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Non trivial solutions for the diophantine $X^2Y+XY^2+XYZ-Z^3=0$

Published on 17 Apr 2026 - 10:08

236

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Given an interval around each rational number: How to find a real number which is in none of these intervals?

Published on 05 May 2026 - 15:46

281

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Chinese remainder theorem over rationals

Published on 10 May 2026 - 12:41

77

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Rational integral conjecture of $(x^{2k} - \sin(\pi x))^2$

Published on 25 Mar 2026 - 4:40

51

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Proofs on Irrational/Rational Real Numbers

Published on 14 Apr 2026 - 20:12

197

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Proof on Rational Numbers

Published on 10 Apr 2026 - 17:06

221

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Precision of Rational Approximation to $\pi$ versus series convergence

Published on 12 Apr 2026 - 23:29

59

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Question Regarding a Specific Rational Number

Published on 15 Apr 2026 - 23:45

445

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Why is it not possible to cross out common denominator(?) in a rational expression? (Example)

Published on 13 Apr 2026 - 18:40

2.6k

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prove that $\mathbb{Q}^n$is dense subset of $\mathbb{R^n}$

Published on 15 Apr 2026 - 16:33

175

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if $\bar{\mathbb {Q}}=\mathbb R$ then is : $\bar{\mathbb {Q}}\times\bar{\mathbb {Q}}$ = $\mathbb R^2$?

Published on 16 Apr 2026 - 21:35

96

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Rational result, how? $\int_{1}^{2}{\mathrm dx\over e^x\ln(x+1)}={27\over 100}$

Published on 16 Apr 2026 - 6:30

70

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Proof verification: $\forall \epsilon\in\Bbb{Q^{+}}\exists x\in\Bbb{Q^{+}}(x^2<2<(x+\epsilon)^2)$

Published on 16 Apr 2026 - 21:58

63

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Solving this Rational Equation?

Published on 14 Apr 2026 - 2:07

List Question

Is this the (real) algebraic numbers?

Non trivial solutions for the diophantine $X^2Y+XY^2+XYZ-Z^3=0$

Given an interval around each rational number: How to find a real number which is in none of these intervals?

Chinese remainder theorem over rationals

Rational integral conjecture of $(x^{2k} - \sin(\pi x))^2$

Proofs on Irrational/Rational Real Numbers

Proof on Rational Numbers

Precision of Rational Approximation to $\pi$ versus series convergence

Question Regarding a Specific Rational Number

Why is it not possible to cross out common denominator(?) in a rational expression? (Example)

prove that $\mathbb{Q}^n$is dense subset of $\mathbb{R^n}$

if $\bar{\mathbb {Q}}=\mathbb R$ then is : $\bar{\mathbb {Q}}\times\bar{\mathbb {Q}}$ = $\mathbb R^2$?

Rational result, how? $\int_{1}^{2}{\mathrm dx\over e^x\ln(x+1)}={27\over 100}$

Proof verification: $\forall \epsilon\in\Bbb{Q^{+}}\exists x\in\Bbb{Q^{+}}(x^2<2<(x+\epsilon)^2)$

Solving this Rational Equation?

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