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15
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Derivative of the absolute value $\vert x\vert^3$ with $\epsilon$-$\delta$-definition - check my proof

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#real-analysis #calculus #derivatives #absolute-value #epsilon-delta
102
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Is it true that the absolute value $|\cdot|$ is equivalent to all $l_p$ norms?

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#soft-question #notation #normed-spaces #absolute-value
80
Views

Find minimum of function $\frac{\left| x-12\right| }{5}+\frac{\sqrt{x^2+25}}{3}$

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#real-analysis #optimization #absolute-value #maxima-minima #cauchy-schwarz-inequality
24
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$P[|X-1| < c]$ of a marginal PDF

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#probability-distributions #absolute-value
124
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Inequality with Absolute Value on both sides?

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#algebra-precalculus #inequality #absolute-value
317
Views

2011 AMC 12B Problem 23 AoPS Wiki hard-to-understand solution

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#contest-math #analytic-geometry #absolute-value
10.5k
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How to prove |a-b|≤|a|+|b|?

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#absolute-value
90
Views

Majoring sum with factorials

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#sequences-and-series #factorial #absolute-value #upper-lower-bounds
297
Views

"Proof" that $\sqrt{x^2} = x$ by using index laws. Why is this wrong?

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#arithmetic #absolute-value #fake-proofs
163
Views

Left and right gradients of an absolute function

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#vector-analysis #absolute-value
96
Views

$\left|x-1\right|=1-x$ solve the equation.

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#absolute-value
71
Views

A question about proving $\left|-a\right|=\left|a\right|$

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#proof-verification #absolute-value
945
Views

Transformations on an absolute value function.

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#linear-transformations #transformation #absolute-value
175
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Find the domain of the simplified absolute value expression and state whether it is equal to the original expression

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#functions #absolute-value #domain-theory
75
Views

Absolute value and limits

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#calculus #sequences-and-series #limits #analysis #absolute-value

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