List questions from absolute-value

Published on 30 Dec 2016 - 16:17

70

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Squeeze Rule Proof variant

Published on 31 Mar 2026 - 17:43

1.1k

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Why does $2+2=5$ in this example?

Published on 27 Mar 2026 - 13:45

54

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Solving a system of equations involving an absolute value

Published on 30 Mar 2026 - 6:49

127

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Is it $\lvert\max\limits_a f(a) - \max\limits_a g(a) \rvert \leq \max\limits_a \lvert f(a) - g(a)\rvert$ true?

Published on 03 Jan 2017 - 12:28

31

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Integration - problems with the range of x

Published on 03 Jan 2017 - 16:02

242

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Determine the intervals in which the following inequality is satisfied: $|1-x|-x\geq 0$

Published on 03 Jan 2017 - 20:56

433

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Verify and Improve: $|x+\frac{1}{x}|\geq 6$

Published on 03 Jan 2017 - 22:07

66

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Curious way of getting abs.

Published on 30 Mar 2026 - 6:49

584

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Absolute value rational inequality

Published on 04 Jan 2017 - 21:59

677

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Is it possible to write an absolute value equation for straight lines, where the symmetry axis is an arbitrary line, in closed form?

Published on 05 Jan 2017 - 23:23

134

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Find all values of $a$ for which the system of equations it has exactly two solutions

Published on 06 Jan 2017 - 17:12

18

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If $\lim_{z\rightarrow z_0} g(z)=B\neq 0$ then $|g(z)|>\frac{1}{2}|B|$

Published on 21 Mar 2026 - 4:15

112

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If $c\leq{a}\leq{d}$ and $c\leq{b}\leq{d}$, why is $\mid {a-b} \mid \leq d-c$?

Published on 07 Jan 2017 - 15:42

74

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For the x=a path, the limit doesn't exist. Does the multivariable limit exist?

Published on 09 Jan 2017 - 15:29

List Question

Trick with inequalities

Squeeze Rule Proof variant

Why does $2+2=5$ in this example?

Solving a system of equations involving an absolute value

Is it $\lvert\max\limits_a f(a) - \max\limits_a g(a) \rvert \leq \max\limits_a \lvert f(a) - g(a)\rvert$ true?

Integration - problems with the range of x

Determine the intervals in which the following inequality is satisfied: $|1-x|-x\geq 0$

Verify and Improve: $|x+\frac{1}{x}|\geq 6$

Curious way of getting abs.

Absolute value rational inequality

Is it possible to write an absolute value equation for straight lines, where the symmetry axis is an arbitrary line, in closed form?

Find all values of $a$ for which the system of equations it has exactly two solutions

If $\lim_{z\rightarrow z_0} g(z)=B\neq 0$ then $|g(z)|>\frac{1}{2}|B|$

If $c\leq{a}\leq{d}$ and $c\leq{b}\leq{d}$, why is $\mid {a-b} \mid \leq d-c$?

For the x=a path, the limit doesn't exist. Does the multivariable limit exist?

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