List questions from absolute-value

Published on 15 Jun 2018 - 19:23

4k

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Degree of differential equation $\sqrt{1+\frac{d^2y}{dx^2}}=x+\frac{dy}{dx}$

Published on 16 Jun 2018 - 4:35

286

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Solve $\sqrt{x^2+10x+9}>|x+2|-5$

Published on 18 Jun 2018 - 20:09

40

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Validity of a certain inequality

Published on 19 Jun 2018 - 19:27

73

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$|x_i|$ is the smallest number $z_i$ that satisfies $x_i \leq z_i$ and $-x_i \leq z_i$

Published on 20 Jun 2018 - 23:13

56

Views

$\lim_{n\to\infty}\int_{X}\lvert f_n -f \rvert \, d\mu=0$. Why does this imply that $\lim_{n\to\infty}\int_{X}f_n \, d\mu=\int_{X}f \, d\mu$?

Published on 21 Jun 2018 - 1:27

153

Views

How to solve equations having absolute values

Published on 21 Jun 2018 - 16:13

115

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Can modulus function present in a particular solution

Published on 22 Jun 2018 - 14:43

168

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Two notions of equivalent norms?

Published on 22 Jun 2018 - 17:11

107

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Solve $2xy+y^2-2x^2\frac{\mathrm{d}y}{\mathrm{d}x}=0$; $y=2$ when $x=1$

Published on 23 Jun 2018 - 9:27

35.2k

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Understanding the absolute value of a matrix.

Published on 23 Jun 2018 - 13:25

109

Views

Inequalities with absolute values

Published on 24 Jun 2018 - 19:07

67

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Why does the second term require $|x|\leq|y|$ not $|x|\leq y$?

Published on 25 Jun 2018 - 18:18

83

Views

Affine combination absolute sum?

Published on 29 Jun 2018 - 8:06

130

Views

Why should we ignore the absolute value of $\sec\theta$?

Published on 03 Jul 2018 - 9:40

List Question

Help with proof of $|x+y| \geq |x|-|y|$

Degree of differential equation $\sqrt{1+\frac{d^2y}{dx^2}}=x+\frac{dy}{dx}$

Solve $\sqrt{x^2+10x+9}>|x+2|-5$

Validity of a certain inequality

$|x_i|$ is the smallest number $z_i$ that satisfies $x_i \leq z_i$ and $-x_i \leq z_i$

$\lim_{n\to\infty}\int_{X}\lvert f_n -f \rvert \, d\mu=0$. Why does this imply that $\lim_{n\to\infty}\int_{X}f_n \, d\mu=\int_{X}f \, d\mu$?

How to solve equations having absolute values

Can modulus function present in a particular solution

Two notions of equivalent norms?

Solve $2xy+y^2-2x^2\frac{\mathrm{d}y}{\mathrm{d}x}=0$; $y=2$ when $x=1$

Understanding the absolute value of a matrix.

Inequalities with absolute values

Why does the second term require $|x|\leq|y|$ not $|x|\leq y$?

Affine combination absolute sum?

Why should we ignore the absolute value of $\sec\theta$?

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