List questions from absolute-value

Published on 24 Jul 2014 - 17:22

107

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Where did I go wrong with this inequality involving absolute value function?

Published on 27 Jul 2014 - 11:50

143

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solving the inequality

Published on 30 Jul 2014 - 10:40

47

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A system of absolute value equalities

Published on 03 Aug 2014 - 20:46

83

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Evaluate the integral $\int_{-1}^{1}\left\vert\, x^{3} - x\,\right\vert\,{\rm d}x$

Published on 03 Aug 2014 - 21:00

139

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If $w_1=a_1+ib_1$ and $w_2=a_2+ib_2$ are complex numbers, then $|e^{w_1}-e^{w_2}|\geq e^{a_1}-e^{a_2}$

Published on 04 Aug 2014 - 10:38

344

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Don't understand inequality in order to prove Algebraic Limit Theorem

Published on 06 Aug 2014 - 9:20

51k

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How to solve equations involving modulus function of the type $|x+1| - |1-x|=2 $ and $ |x-1|=|x|+a$?

Published on 07 Aug 2014 - 2:50

435

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Dealing with absolute values after trigonometric substitution in $\int \frac{\sqrt{1+x^2}}{x} \text{ d}x$.

Published on 09 Aug 2014 - 23:04

571

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Absolute value quadratic inequalities not the usual?

Published on 10 Aug 2014 - 2:31

64

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$\left | -(x+2)^2+6(x+2) \right |>13$

Published on 10 Aug 2014 - 4:07

47

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Solving $n \int_{\mathbb{R}}{\left|\frac{1}{n}\sum_{j=1}^n{e^{(itY_j)}}-e^{-\frac{1}{2}t^2}\right|^2}\psi(t)dt$

Published on 11 Aug 2014 - 13:15

1k

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Is it always true? $\left|A-B\right| \le \left|A\right| + \left|B\right|$

Published on 11 Aug 2014 - 14:12

29

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Does $|(aj+b)^{-1}| = (|aj+b|)^{-1}$

Published on 12 Aug 2014 - 9:21

1k

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Graphs for mod functions

Published on 12 Aug 2014 - 9:50

List Question

$|x| - |y| \leq |x-y|?$

Where did I go wrong with this inequality involving absolute value function?

solving the inequality

A system of absolute value equalities

Evaluate the integral $\int_{-1}^{1}\left\vert\, x^{3} - x\,\right\vert\,{\rm d}x$

If $w_1=a_1+ib_1$ and $w_2=a_2+ib_2$ are complex numbers, then $|e^{w_1}-e^{w_2}|\geq e^{a_1}-e^{a_2}$

Don't understand inequality in order to prove Algebraic Limit Theorem

How to solve equations involving modulus function of the type $|x+1| - |1-x|=2 $ and $ |x-1|=|x|+a$?

Dealing with absolute values after trigonometric substitution in $\int \frac{\sqrt{1+x^2}}{x} \text{ d}x$.

Absolute value quadratic inequalities not the usual?

$\left | -(x+2)^2+6(x+2) \right |>13$

Solving $n \int_{\mathbb{R}}{\left|\frac{1}{n}\sum_{j=1}^n{e^{(itY_j)}}-e^{-\frac{1}{2}t^2}\right|^2}\psi(t)dt$

Is it always true? $\left|A-B\right| \le \left|A\right| + \left|B\right|$

Does $|(aj+b)^{-1}| = (|aj+b|)^{-1}$

Graphs for mod functions

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