List questions from problem-solving

Published on 12 Apr 2026 - 6:27

538

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What is a negative inversion?

Published on 08 Apr 2026 - 20:20

123

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How do you find the equilibrium points of this second order, non-linear ODE?

Published on 11 Apr 2026 - 18:31

76

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Doubt in testing the solution of a quadratic equation

Published on 08 Apr 2026 - 21:06

146

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Characteristic polynomial of an $n \times n$ matrix with only one column and one row non zero.

Published on 13 Apr 2026 - 22:32

408

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Cross-sections of a cone inscribed in a cylinder

Published on 15 Apr 2026 - 2:45

168

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Solving infinite ladder of differential equations using generating functions.

Published on 12 Apr 2026 - 15:29

58

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A compact note on equivalent metrics.

Published on 16 Apr 2026 - 13:00

132

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Is this solution to a seating / PigeonHole question correct?

Published on 12 Apr 2026 - 2:04

162

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Determining track velocity of a transmitter given time of signal arrival at $n$ receivers

Published on 11 Apr 2026 - 21:15

290

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Balls in urns with different max capacity for each urn

Published on 14 Apr 2026 - 2:24

282

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A primitive root modulo $p^k$ is primitive modulo $p^{k+1}$,for $k\geq 2$.

Published on 16 Apr 2026 - 1:10

129

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Writing modules over PIDs as direct sums of cyclics

Published on 12 Apr 2026 - 8:53

190

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Approximate solution to a transcendental equation

Published on 13 Apr 2026 - 15:50

693

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If $\frac{x^2-yz}{a^2-bc}=\frac{y^2-zx}{b^2-ca}=\frac{z^2-xy}{c^2-ab}$, prove that $\frac{x}{a}=\frac{y}{b}=\frac{z}{c}$.

Published on 16 Apr 2026 - 5:26

List Question

How is AC an angle bisector of $\angle PAB$?

What is a negative inversion?

How do you find the equilibrium points of this second order, non-linear ODE?

Doubt in testing the solution of a quadratic equation

Characteristic polynomial of an $n \times n$ matrix with only one column and one row non zero.

Cross-sections of a cone inscribed in a cylinder

Solving infinite ladder of differential equations using generating functions.

A compact note on equivalent metrics.

Is this solution to a seating / PigeonHole question correct?

Determining track velocity of a transmitter given time of signal arrival at $n$ receivers

Balls in urns with different max capacity for each urn

A primitive root modulo $p^k$ is primitive modulo $p^{k+1}$,for $k\geq 2$.

Writing modules over PIDs as direct sums of cyclics

Approximate solution to a transcendental equation

If $\frac{x^2-yz}{a^2-bc}=\frac{y^2-zx}{b^2-ca}=\frac{z^2-xy}{c^2-ab}$, prove that $\frac{x}{a}=\frac{y}{b}=\frac{z}{c}$.

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