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15
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How to prove this delta-epsilon proof involving $x^2$?

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#calculus #limits #proof-writing #absolute-value #epsilon-delta
149
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How do i find $z$ with $|z+9|=3|z+1|$?

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#geometry #complex-numbers #circles #absolute-value
248
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How would you find the graph of $|||x|-2 | -1 | + |||y|-2 | -1 |=1$without a graphing calculator?

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#graphing-functions #absolute-value
184
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Proof of Existence of Complete Field with Dense Subfield

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#metric-spaces #absolute-value
54
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how do I manipulate natural logs in my integration

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#integration #logarithms #absolute-value #substitution
111
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$-5|2x+1|<10$, I keep getting the wrong answer

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#inequality #absolute-value
712
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Prove $\int_{\pi}^{\infty}\frac{\cos(x)}{x}dx$ is convergent

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#calculus #absolute-value #absolute-convergence
1.1k
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Help me understand $y=f(x)$ vs. $y=f(|x|)$ intuitively

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#graphing-functions #intuition #absolute-value
133
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Absolute value problem $|mx+\alpha|+|mx+\beta|=c$

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#algebra-precalculus #absolute-value
127
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system of equations with an odd number of distinct solutions, with absolute value sign

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#systems-of-equations #absolute-value
79
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Getting rid of the absolute value in the resolution of a differential equation

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#ordinary-differential-equations #absolute-value #partial-fractions
80
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Absolute numbers question

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#linear-algebra #absolute-value
369
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Is it true that $\left|\max|f(x)| - \max|g(x)|\right| \leq \max|f(x) - g(x)|$?

Published on
#real-analysis #inequality #absolute-value
662
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Prove all the roots of a given polynomial lie in the disk with radius $2$

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#complex-analysis #inequality #polynomials #complex-numbers #absolute-value
6.9k
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Why is squaring an absolute value legitimate for algebraic manipulation?

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#algebra-precalculus #absolute-value

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