List questions from inequality

Published on 25 Mar 2026 - 6:02

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$X>0$, $Y>0$ and $X^2+Y ^3\geq X^3+Y^4$. Prove that $X^3+Y ^3\leq 2$

Published on 26 Mar 2026 - 3:08

42

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Is this technically correct? And absolute value on an inequality?

Published on 27 Mar 2026 - 3:46

30

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Inequality: $\sum_{i = 1}^{n} x_{i} = kn$ if and only if $x_{i} = k$ (proof verification)

Published on 21 Aug 2018 - 13:33

319

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How do I express x in terms of y in this set of equations?

Published on 01 Apr 2026 - 13:42

65

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Formula to find n where nth term >= x

Published on 25 Mar 2026 - 16:01

76

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Easy way to see that $|x-z|^2 \geq |y-z|^2 + (2y-2z)\cdot (x-y),\forall x,y \in \mathbb{R}^n$, for fixed $z \in \mathbb{R}^n$

Published on 30 Mar 2026 - 3:24

173

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Using AM-GM to reason about the upper bound of an $n$th root of a factorial

Published on 25 Mar 2026 - 20:20

48

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Finding required integers that satisfy an inequality

Published on 26 Mar 2026 - 17:52

113

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Prove $|x - y|\le|x| + |y|$ (Spivak's Calculus Book)

Published on 22 Aug 2018 - 8:05

760

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Do a specific inequality hold under integration?

Published on 25 Mar 2026 - 12:13

219

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Finding for n in an inequality

Published on 22 Aug 2018 - 13:08

86

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From derivative of $f$ to squaring $f$

Published on 22 Aug 2018 - 13:26

62

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Matrix norm $\|\cdot \|_{2, \infty}$ inequality

Published on 22 Aug 2018 - 15:24

142

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Inequality $|P(z)|\geq P(|z|)$ related to Mandelbrot set

Published on 01 Apr 2026 - 0:17

List Question

Is $\phi(n) + \sigma(n) \geq 2n$ always true?

$X>0$, $Y>0$ and $X^2+Y ^3\geq X^3+Y^4$. Prove that $X^3+Y ^3\leq 2$

Is this technically correct? And absolute value on an inequality?

Inequality: $\sum_{i = 1}^{n} x_{i} = kn$ if and only if $x_{i} = k$ (proof verification)

How do I express x in terms of y in this set of equations?

Formula to find n where nth term >= x

Easy way to see that $|x-z|^2 \geq |y-z|^2 + (2y-2z)\cdot (x-y),\forall x,y \in \mathbb{R}^n$, for fixed $z \in \mathbb{R}^n$

Using AM-GM to reason about the upper bound of an $n$th root of a factorial

Finding required integers that satisfy an inequality

Prove $|x - y|\le|x| + |y|$ (Spivak's Calculus Book)

Do a specific inequality hold under integration?

Finding for n in an inequality

From derivative of $f$ to squaring $f$

Matrix norm $\|\cdot \|_{2, \infty}$ inequality

Inequality $|P(z)|\geq P(|z|)$ related to Mandelbrot set

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