List questions from absolute-value

Published on 04 Sep 2013 - 21:42

54

Views

How to draw $|y|=|(x-2)^2-1|$?

Published on 06 Sep 2013 - 12:21

144

Views

Help with showing that $|x+y|=|x|+|y| \longleftrightarrow xy\ge0 $

Published on 09 Sep 2013 - 10:59

777

Views

Finding the derivative of $|x|^4$ using the chain rule.

Published on 14 Sep 2013 - 17:30

1.1k

Views

Solving an equation with absolute values inside absolute value

Published on 15 Sep 2013 - 10:49

625

Views

Prove that: $\left | 2x-y-4 \right |\geq 4\sqrt{2}+4$

Published on 16 Sep 2013 - 12:40

4.4k

Views

Chain rule and the derivative of absolute value functions

Published on 17 Sep 2013 - 12:55

138

Views

Finding x-intercept of absolute values

Published on 20 Sep 2013 - 4:59

90

Views

Value and simplify

Published on 20 Sep 2013 - 22:28

102

Views

Need help on proofs

Published on 22 Sep 2013 - 1:32

147

Views

Basic question about $p$-adic expansions

Published on 02 Apr 2026 - 6:58

8.7k

Views

I need help finding the x intercept of an absolute value equation.

Published on 24 Sep 2013 - 2:08

576

Views

Prove: If $\lim_{n\rightarrow\infty}|a_n| = 0$, then $\lim_{n\rightarrow\infty}a_n = 0$

Published on 25 Sep 2013 - 17:45

846

Views

Help checking proof of reverse triangle inequality $|x| - |y| \le |x + y|$?

Published on 27 Sep 2013 - 19:41

929

Views

How prove this inequality: $\sum_{i,j=1}^{n}|x_{i}+x_{j}|\ge n\sum_{i=1}^{n}|x_{i}|$?

Published on 28 Sep 2013 - 15:46

List Question

Questions about $|f(1+a+bi)|<|f(1+a)|$

How to draw $|y|=|(x-2)^2-1|$?

Help with showing that $|x+y|=|x|+|y| \longleftrightarrow xy\ge0 $

Finding the derivative of $|x|^4$ using the chain rule.

Solving an equation with absolute values inside absolute value

Prove that: $\left | 2x-y-4 \right |\geq 4\sqrt{2}+4$

Chain rule and the derivative of absolute value functions

Finding x-intercept of absolute values

Value and simplify

Need help on proofs

Basic question about $p$-adic expansions

I need help finding the x intercept of an absolute value equation.

Prove: If $\lim_{n\rightarrow\infty}|a_n| = 0$, then $\lim_{n\rightarrow\infty}a_n = 0$

Help checking proof of reverse triangle inequality $|x| - |y| \le |x + y|$?

How prove this inequality: $\sum_{i,j=1}^{n}|x_{i}+x_{j}|\ge n\sum_{i=1}^{n}|x_{i}|$?

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