List questions from systems-of-equations

Published on 17 Apr 2018 - 16:20

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Number of solutions to a polynomial

Published on 26 Mar 2026 - 1:28

992

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Help to solve a system equation: $x-y+xy=-4$; $xy(x-y)=-21$.

Published on 24 Mar 2026 - 23:46

131

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Infinite system of linear equations

Published on 26 Mar 2026 - 9:49

60

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Find five parameter values for a $_3\tilde{F}_2$ function yielding five polynomials

Published on 26 Mar 2026 - 12:52

53

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Easier solution for system of equations.

Published on 19 Apr 2018 - 20:31

4.2k

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Solving a system of equations: $\begin{cases}\frac xy-\frac yx=\frac{15}4\\2x-5y=9\end{cases}$

Published on 20 Apr 2018 - 7:50

166

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The linear system $Bx = b$ is consistent $\iff$ $BB^Tx = b$ is consistent

Published on 20 Apr 2018 - 9:15

452

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Equivalence of 2 homogenous linear systems of equations with same solutions

Published on 20 Apr 2018 - 13:45

104

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Find $x, y, z \in \mathbb{Z}$ such that :

Published on 22 Mar 2026 - 18:13

75

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Solving $x^2+y^2=9$, $\arctan\frac{y+2}{x+2} + \arctan\frac{y-2}{x+4} =2\arctan\frac{y}{x}$ without graphing?

Published on 22 Apr 2018 - 6:53

636

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If $\alpha$, $\beta$, $\gamma$ are roots of $x^3+p x+q=0$, then $\alpha^5+\beta^5+\gamma^5=5\alpha\beta\gamma(\alpha\beta+\beta\gamma+\gamma\alpha)$.

Published on 22 Apr 2018 - 8:39

18

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dependence on a certain variable in a system

Published on 23 Mar 2026 - 9:46

44

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How to find the extra constant after separating a system of ODEs?

Published on 23 Apr 2018 - 7:22

377

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How to solve PDE system

Published on 23 Apr 2018 - 9:10

List Question

Division of modified bessel of the second kind over the first kind

Number of solutions to a polynomial

Help to solve a system equation: $x-y+xy=-4$; $xy(x-y)=-21$.

Infinite system of linear equations

Find five parameter values for a $_3\tilde{F}_2$ function yielding five polynomials

Easier solution for system of equations.

Solving a system of equations: $\begin{cases}\frac xy-\frac yx=\frac{15}4\\2x-5y=9\end{cases}$

The linear system $Bx = b$ is consistent $\iff$ $BB^Tx = b$ is consistent

Equivalence of 2 homogenous linear systems of equations with same solutions

Find $x, y, z \in \mathbb{Z}$ such that :

Solving $x^2+y^2=9$, $\arctan\frac{y+2}{x+2} + \arctan\frac{y-2}{x+4} =2\arctan\frac{y}{x}$ without graphing?

If $\alpha$, $\beta$, $\gamma$ are roots of $x^3+p x+q=0$, then $\alpha^5+\beta^5+\gamma^5=5\alpha\beta\gamma(\alpha\beta+\beta\gamma+\gamma\alpha)$.

dependence on a certain variable in a system

How to find the extra constant after separating a system of ODEs?

How to solve PDE system

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