List questions from education

Published on 24 Aug 2023 - 12:10

71

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Easiest proof of existence of non-Lebesgue-measurable sets

Published on 03 Sep 2023 - 23:56

45

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"Obvious" but nevertheless wrong?

Published on 09 Sep 2023 - 9:30

98

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How to motivate the teaching of differential equations?

Published on 25 Mar 2026 - 16:13

61

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Equation with given solutions and extraneous solutions

Published on 15 Sep 2023 - 1:55

97

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Why must be $i^2=-1$?

Published on 16 Sep 2023 - 11:51

91

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Proof of $(\sqrt[n]{a})^n=(\sqrt[n]{a^n})$

Published on 19 Sep 2023 - 18:52

32

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Is this a valid shortcut for limits of rational polynomialls at infinity?

Published on 20 Sep 2023 - 22:01

58

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Distributional property of $n$-th root extraction respect to the multiplication

Published on 21 Sep 2023 - 7:45

264

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whats happening when i do arctan? Mistake or wrong in calculator

Published on 22 Sep 2023 - 14:21

126

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How to formalize and prove a reasoning as propositional logic?

Published on 25 Sep 2023 - 5:43

64

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Green's theorem example application for engineers and physicists.

Published on 25 Mar 2026 - 23:09

1.7k

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What's the best explanation of the fallacy in this 'paradox'?

Published on 26 Mar 2026 - 12:37

43

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Use of the Cartesian product and combinations

Published on 08 Oct 2023 - 21:46

132

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Why do these two functions have different graph?

Published on 12 Oct 2023 - 2:09

List Question

To prove E[Y] = E[E[Y∣X]] if X is continuous and Y is discrete

Easiest proof of existence of non-Lebesgue-measurable sets

"Obvious" but nevertheless wrong?

How to motivate the teaching of differential equations?

Equation with given solutions and extraneous solutions

Why must be $i^2=-1$?

Proof of $(\sqrt[n]{a})^n=(\sqrt[n]{a^n})$

Is this a valid shortcut for limits of rational polynomialls at infinity?

Distributional property of $n$-th root extraction respect to the multiplication

whats happening when i do arctan? Mistake or wrong in calculator

How to formalize and prove a reasoning as propositional logic?

Green's theorem example application for engineers and physicists.

What's the best explanation of the fallacy in this 'paradox'?

Use of the Cartesian product and combinations

Why do these two functions have different graph?

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