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Simple doubt on a linear algebra proof involving inequalities

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#linear-algebra #inequality #absolute-value
1k
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Is there an extension of the reverse triangle inequality to $n$ variables?

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#algebra-precalculus #inequality #absolute-value
38
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What is the mathematical proof behind this algorithm?

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#optimization #absolute-value
96
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How can the product of two arbitrary numbers lie between the two numbers in real line?

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#absolute-value
200
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Double sided modulus equation: $|2x-1| = |3x+2|$

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#algebra-precalculus #absolute-value
135
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Equality for modulus of 3 complex numbers

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#polynomials #complex-numbers #factoring #absolute-value
525
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prove $|X-Y|\le|X|+|Y|$

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#real-analysis #inequality #real-numbers #absolute-value
34
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Condition for $x,y$ so $|x+y| = C(|x| + |y|)$

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#algebra-precalculus #absolute-value
1.6k
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How do you draw the absolute value graph of $y = \vert 2x + 1 \vert + x - 3$?

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#absolute-value
38
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Performing operations involving absolute values

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#absolute-value
116
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Why is $|x^2 - a^2| = |x - a||x + a|$?

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#algebra-precalculus #absolute-value
42
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Equation of first grade with absolute value

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#absolute-value
44
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Simple modulus question

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#absolute-value
152
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The image of a valuation is dense in $\mathbb{R}$

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#abstract-algebra #functional-analysis #absolute-value #p-adic-number-theory #valuation-theory
519
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What's the explanation behind the identity $\frac{x+y}{2} +\frac{\vert x-y\vert}{2}=\mathrm{max}(x,y)$?

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#algebra-precalculus #absolute-value

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