List questions from problem-solving

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Kernel and Image linear map on polynomials

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What is the size of each side of the square?

Published on 01 Apr 2026 - 2:36

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password security combination problem

Published on 26 May 2020 - 14:31

186

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How to proceed in this Boundary value problem where Eigen values are calculated numerically?

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What book would you recommend to significantly improve my problem solving skills?

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Solving some kind of sequential move puzzle on 2D trapezoid grid

Published on 28 May 2020 - 17:53

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A wine taster claims she can distinguish four vintages of a particular Cabernet. What is prob this can be done by guessing? Feedback

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Olympiad Minimization Problem

Published on 28 Mar 2026 - 10:31

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A parallel line through the incenter of a triangle

Published on 31 May 2020 - 13:19

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Analytic expression for implicit function

Published on 30 Mar 2026 - 6:26

334

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Comparing the trigonometric functions of any two angles in the same quarter of the unit circle

Published on 25 Mar 2026 - 3:04

84

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Find angles $A$ and $B$ in equation $\frac{F_1}{\cos A }=\frac{F_2}{\cos B}=\frac{F_3}{\sin(A+B)}$

Published on 27 Mar 2026 - 23:48

79

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Solving an equation having trignometric functions on RHS and an number in LHS

Published on 03 Jun 2020 - 7:17

69

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Giving away $500$ pencils: $1$ on the first day, $2$ on the second day, etc. How long will it take?

Published on 05 Jun 2020 - 2:04

List Question

Determinant Tic Tac Toe Part 2

Kernel and Image linear map on polynomials

What is the size of each side of the square?

password security combination problem

How to proceed in this Boundary value problem where Eigen values are calculated numerically?

What book would you recommend to significantly improve my problem solving skills?

Solving some kind of sequential move puzzle on 2D trapezoid grid

A wine taster claims she can distinguish four vintages of a particular Cabernet. What is prob this can be done by guessing? Feedback

Olympiad Minimization Problem

A parallel line through the incenter of a triangle

Analytic expression for implicit function

Comparing the trigonometric functions of any two angles in the same quarter of the unit circle

Find angles $A$ and $B$ in equation $\frac{F_1}{\cos A }=\frac{F_2}{\cos B}=\frac{F_3}{\sin(A+B)}$

Solving an equation having trignometric functions on RHS and an number in LHS

Giving away $500$ pencils: $1$ on the first day, $2$ on the second day, etc. How long will it take?

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