Question

Range of functions on $\mathbb{R}$

score 116 · Answer 1 · 2011-06-20 07:16:22

116

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Range of functions on $\mathbb{R}$

Published on 20 Jun 2011 - 7:16

score 5.1k · Answer 2 · 2011-08-09 05:43:16

5.1k

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integral from 0 to $2\pi$ of $|\cos x|\operatorname{d}x$ not integrating as I'd expect

Published on 09 Aug 2011 - 5:43

score 77k · Answer 3 · 2026-03-27 12:30:18

77k

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Square root of a number squared is equal to the absolute value of that number

Published on 27 Mar 2026 - 12:30

score 142 · Answer 4 · 2011-09-20 06:03:27

142

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Why is it that $\left|b_n - b \right| < \frac{\left|b \right|}{2} \Rightarrow \left| b_n \right| > \frac{\left|b \right|}{2}$?

Published on 20 Sep 2011 - 6:03

score 1.3k · Answer 5 · 2011-09-21 20:59:50

1.3k

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Proving Absolute Value Inequality

Published on 21 Sep 2011 - 20:59

score 259 · Answer 6 · 2011-09-22 02:15:58

259

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Inequality with absolute value

Published on 22 Sep 2011 - 2:15

score 528 · Answer 7 · 2011-09-22 10:32:49

528

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Why exactly can you take the absolute value of one side of this inequality and assume it is still true?

Published on 22 Sep 2011 - 10:32

score 222 · Answer 8 · 2011-09-23 11:49:01

222

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Is $|x^r|=|x|^r$ for real numbers $x$ and $r$?

Published on 23 Sep 2011 - 11:49

score 3.7k · Answer 9 · 2011-09-23 14:23:45

3.7k

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$|x-y| + |y-z| = |x-z|$ then $x \le y \le z$

Published on 23 Sep 2011 - 14:23

score 106 · Answer 10 · 2011-09-27 19:51:04

106

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How do I find this limit?

Published on 27 Sep 2011 - 19:51

score 2.8k · Answer 11 · 2011-09-28 05:44:56

2.8k

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Joint pdf of X and Y with absolute value range

Published on 28 Sep 2011 - 5:44

score 785 · Answer 12 · 2011-09-29 01:12:21

785

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When should I put an absolute value sign around a function?

Published on 29 Sep 2011 - 1:12

score 508 · Answer 13 · 2026-04-01 07:23:51

508

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Why do definitions of distinct conic sections produce a single equation?

Published on 01 Apr 2026 - 7:23

score 2.7k · Answer 14 · 2011-10-09 21:15:38

2.7k

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Prove by contradiction or contrapositive? If $|x+y|<|x|+|y|$, then $x<0$ or $y<0$.

Published on 09 Oct 2011 - 21:15

score 3.7k · Answer 15 · 2011-10-24 15:54:26

3.7k

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Which function ($f$) is continuous nowhere but $|f(x)|$ is continuous everywhere?

Published on 24 Oct 2011 - 15:54

List Question

Range of functions on $\mathbb{R}$

integral from 0 to $2\pi$ of $|\cos x|\operatorname{d}x$ not integrating as I'd expect

Square root of a number squared is equal to the absolute value of that number

Why is it that $\left|b_n - b \right| < \frac{\left|b \right|}{2} \Rightarrow \left| b_n \right| > \frac{\left|b \right|}{2}$?

Proving Absolute Value Inequality

Inequality with absolute value

Why exactly can you take the absolute value of one side of this inequality and assume it is still true?

Is $|x^r|=|x|^r$ for real numbers $x$ and $r$?

$|x-y| + |y-z| = |x-z|$ then $x \le y \le z$

How do I find this limit?

Joint pdf of X and Y with absolute value range

When should I put an absolute value sign around a function?

Why do definitions of distinct conic sections produce a single equation?

Prove by contradiction or contrapositive? If $|x+y|<|x|+|y|$, then $x<0$ or $y<0$.

Which function ($f$) is continuous nowhere but $|f(x)|$ is continuous everywhere?

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