Question

Test of rational number as a terminating decimal number using $2^m \cdot 5^n$

score 114 · Answer 1 · 2026-04-02 19:47:51

114

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Test of rational number as a terminating decimal number using $2^m \cdot 5^n$

Published on 02 Apr 2026 - 19:47

score 77 · Answer 2 · 2022-08-01 17:46:39

77

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Find $\lim_{x\rightarrow 0}{\frac{\tan(x)-x}{x\cdot(e^{x^2}-e^{x^3})}}$

Published on 01 Aug 2022 - 17:46

score 176 · Answer 3 · 2022-08-05 16:22:22

176

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Sum of all real roots of $\frac{{3{x^2} - 9x + 17}}{{{x^2} + 3x + 10}} = \frac{{5{x^2} - 7x + 19}}{{3{x^2} + 5x + 12}}$?

Published on 05 Aug 2022 - 16:22

score 27 · Answer 4 · 2026-04-10 22:55:20

27

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Field of formal Laurent series as a colimit of fractions

Published on 10 Apr 2026 - 22:55

score 126 · Answer 5 · 2026-04-10 12:06:55

126

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How to represent a negative percentage contribution larger than the total?

Published on 10 Apr 2026 - 12:06

score 48 · Answer 6 · 2026-04-10 21:13:07

48

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Percentage increase/decrease in two numbers to be multiplied

Published on 10 Apr 2026 - 21:13

score 151 · Answer 7 · 2026-04-09 17:15:44

151

Views

Something not looking obvious in solving equation $x^y=y^x$ for rational $x$ and $y$.

Published on 09 Apr 2026 - 17:15

score 70 · Answer 8 · 2026-04-09 17:29:39

70

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Proof by Induction - Doubt at exemple

Published on 09 Apr 2026 - 17:29

score 1.7k · Answer 9 · 2026-02-23 22:46:07

1.7k

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Fractional approximation of $e$

Published on 23 Feb 2026 - 22:46

score 142 · Answer 10 · 2026-03-30 07:59:54

142

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Are $\cosh(1), \sinh(1), $ and $e^{1/r}-1 $ the only known constants with regular Engel expansions?

Published on 30 Mar 2026 - 7:59

score 97 · Answer 11 · 2026-04-09 07:16:34

97

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Unsure how to simplify

Published on 09 Apr 2026 - 7:16

score 81 · Answer 12 · 2022-09-02 02:59:40

81

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Understanding : $\int \frac{1}{x^{-1}+1}dx$

Published on 02 Sep 2022 - 2:59

score 58 · Answer 13 · 2022-09-06 13:07:39

58

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Recognizing infinite sets in set theory

Published on 06 Sep 2022 - 13:07

score 78 · Answer 14 · 2026-04-11 07:59:56

78

Views

Position of the irrational numbers on the number line explanation.

Published on 11 Apr 2026 - 7:59

score 87 · Answer 15 · 2026-04-09 18:32:52

87

Views

Why the Rhind papyrus contains representations only to fractions of the form $2/n$?

Published on 09 Apr 2026 - 18:32

List Question

Test of rational number as a terminating decimal number using $2^m \cdot 5^n$

Find $\lim_{x\rightarrow 0}{\frac{\tan(x)-x}{x\cdot(e^{x^2}-e^{x^3})}}$

Sum of all real roots of $\frac{{3{x^2} - 9x + 17}}{{{x^2} + 3x + 10}} = \frac{{5{x^2} - 7x + 19}}{{3{x^2} + 5x + 12}}$?

Field of formal Laurent series as a colimit of fractions

How to represent a negative percentage contribution larger than the total?

Percentage increase/decrease in two numbers to be multiplied

Something not looking obvious in solving equation $x^y=y^x$ for rational $x$ and $y$.

Proof by Induction - Doubt at exemple

Fractional approximation of $e$

Are $\cosh(1), \sinh(1), $ and $e^{1/r}-1 $ the only known constants with regular Engel expansions?

Unsure how to simplify

Understanding : $\int \frac{1}{x^{-1}+1}dx$

Recognizing infinite sets in set theory

Position of the irrational numbers on the number line explanation.

Why the Rhind papyrus contains representations only to fractions of the form $2/n$?

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