Question

Zero set of system of two real quadratic forms

score 52 · Answer 1 · 2026-04-16 01:04:02

52

Views

Zero set of system of two real quadratic forms

Published on 16 Apr 2026 - 1:04

score 75 · Answer 2 · 2026-04-15 04:47:13

75

Views

Prove that this is a rhombus.

Published on 15 Apr 2026 - 4:47

score 115 · Answer 3 · 2026-04-14 04:39:42

115

Views

Transforming a system of PDE's: linear and nonlinear

Published on 14 Apr 2026 - 4:39

score 158 · Answer 4 · 2026-04-17 14:01:33

158

Views

Solving the system $x+y+z=1$, $x^2+y^2+z^2=2$, $xyz-xy-xz-yz=3$

Published on 17 Apr 2026 - 14:01

score 134 · Answer 5 · 2026-04-16 10:23:03

134

Views

Show that if $\sum\limits_{k=1}^nx_k=\sum\limits_{k=1}^n{x_k}^2=\dots=\sum\limits_{k=1}^n{x_k}^n$ where $x_k\in\mathbb{R}$ then $x_1x_2\dots x_n\le1$.

Published on 16 Apr 2026 - 10:23

score 93 · Answer 6 · 2026-04-16 18:37:36

93

Views

Letting A be an $m$-by-$n$ matrix, if $m>n$, does there exist an $m$ dimensional vector $b$ that would cause the system $Ax=b$ to have no solution?.

Published on 16 Apr 2026 - 18:37

score 25 · Answer 7 · 2026-04-13 16:39:04

25

Views

A doubt regarding the calculation of inverse matrices

Published on 13 Apr 2026 - 16:39

score 118 · Answer 8 · 2026-04-24 06:41:15

118

Views

Finding roots of a $3$-dimensional sinusoidal function

Published on 24 Apr 2026 - 6:41

score 38 · Answer 9 · 2026-04-13 23:55:37

38

Views

Solution to system of nonlinear equations

Published on 13 Apr 2026 - 23:55

score 96 · Answer 10 · 2026-04-13 19:52:36

96

Views

Optimizing volume with an irregular shape: A 5th Grade Math Problem Misinterpreted

Published on 13 Apr 2026 - 19:52

score 65 · Answer 11 · 2026-04-12 01:33:29

65

Views

How to obtain approximation solution for this differential equations?

Published on 12 Apr 2026 - 1:33

score 41 · Answer 12 · 2026-04-16 18:57:02

41

Views

Extracting an element from a circular array using purely algebraic means/function?

Published on 16 Apr 2026 - 18:57

score 37 · Answer 13 · 2026-04-15 23:35:00

37

Views

Can the implication $(x_1 = 0) \rightarrow (p(x_1,...,x_n) = 0)$ be encoded in a system of polynomial constraints in $\mathbb{C}[x_1,...,x_n]$?

Published on 15 Apr 2026 - 23:35

score 67 · Answer 14 · 2026-04-24 08:56:35

67

Views

If $a, b$ and $c$ are real numbers such that $2^a + 4^b = 2^c$, $4^a + 2^b = 4^c$. Find the minimum value of $c$.

Published on 24 Apr 2026 - 8:56

score 35 · Answer 15 · 2026-04-24 08:51:07

35

Views

Find solutions to simultaneous equations in two variables (trig and exponential)

Published on 24 Apr 2026 - 8:51

List Question

Zero set of system of two real quadratic forms

Prove that this is a rhombus.

Transforming a system of PDE's: linear and nonlinear

Solving the system $x+y+z=1$, $x^2+y^2+z^2=2$, $xyz-xy-xz-yz=3$

Show that if $\sum\limits_{k=1}^nx_k=\sum\limits_{k=1}^n{x_k}^2=\dots=\sum\limits_{k=1}^n{x_k}^n$ where $x_k\in\mathbb{R}$ then $x_1x_2\dots x_n\le1$.

Letting A be an $m$-by-$n$ matrix, if $m>n$, does there exist an $m$ dimensional vector $b$ that would cause the system $Ax=b$ to have no solution?.

A doubt regarding the calculation of inverse matrices

Finding roots of a $3$-dimensional sinusoidal function

Solution to system of nonlinear equations

Optimizing volume with an irregular shape: A 5th Grade Math Problem Misinterpreted

How to obtain approximation solution for this differential equations?

Extracting an element from a circular array using purely algebraic means/function?

Can the implication $(x_1 = 0) \rightarrow (p(x_1,...,x_n) = 0)$ be encoded in a system of polynomial constraints in $\mathbb{C}[x_1,...,x_n]$?

If $a, b$ and $c$ are real numbers such that $2^a + 4^b = 2^c$, $4^a + 2^b = 4^c$. Find the minimum value of $c$.

Find solutions to simultaneous equations in two variables (trig and exponential)

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