List questions from absolute-value

Published on 29 Aug 2017 - 5:52

41

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How do I assume correct values for x in absolute value function?

Published on 29 Aug 2017 - 10:19

111

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Proving that if $x,y \in \Bbb R$ and $|x|=|y|$ then $x^2=y^2$

Published on 29 Aug 2017 - 17:45

935

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Why does $\mathrm{abs}(i)=1$

Published on 30 Aug 2017 - 1:57

654

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Modulus proprierty in e power to the Real part of a complex number

Published on 30 Aug 2017 - 18:13

121

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When $c$ is real and in the interval $[-1,1]$, the roots $z$ of $z^2-2cz+1=0$ have $|z|=1$.

Published on 31 Aug 2017 - 3:40

552

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If $x$ is a real number, then $|x+1| \leq 3$ implies that $-4 \leq x \leq 2$.

Published on 31 Aug 2017 - 6:00

254

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$|x^2-5x+2|\leq 4$

Published on 31 Aug 2017 - 20:47

202

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Definite Integral of a sinusoid, with absolute value?

Published on 01 Sep 2017 - 23:24

139

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Absolute value equations answer

Published on 02 Sep 2017 - 15:52

205

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True or false: $\left|\max\limits_{x\in D}f(x) - \max\limits_{x\in D}g(x)\right| \leq \max\limits_{x\in D}\left|f(x)-g(x)\right|$

Published on 05 Sep 2017 - 11:11

68

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Absolute value notation in $\lvert\,x\,\rvert$

Published on 05 Sep 2017 - 18:15

311

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Maximum value of complex valued function

Published on 06 Sep 2017 - 14:30

3k

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Triangle Inequality proof with three variables

Published on 07 Sep 2017 - 0:42

72

Views

Prooving that $sign(x)=1$(?)

Published on 30 Mar 2026 - 6:44

List Question

Find the number of ordered pairs satisfying the following:

How do I assume correct values for x in absolute value function?

Proving that if $x,y \in \Bbb R$ and $|x|=|y|$ then $x^2=y^2$

Why does $\mathrm{abs}(i)=1$

Modulus proprierty in e power to the Real part of a complex number

When $c$ is real and in the interval $[-1,1]$, the roots $z$ of $z^2-2cz+1=0$ have $|z|=1$.

If $x$ is a real number, then $|x+1| \leq 3$ implies that $-4 \leq x \leq 2$.

$|x^2-5x+2|\leq 4$

Definite Integral of a sinusoid, with absolute value?

Absolute value equations answer

True or false: $\left|\max\limits_{x\in D}f(x) - \max\limits_{x\in D}g(x)\right| \leq \max\limits_{x\in D}\left|f(x)-g(x)\right|$

Absolute value notation in $\lvert\,x\,\rvert$

Maximum value of complex valued function

Triangle Inequality proof with three variables

Prooving that $sign(x)=1$(?)

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