Solved problems
The horizonThe wooden cubeEquality of simple matricesFraction over 100Hidden fractionsPolynomials or not?Real roots and derivative polynomialFour consecutive integersOn camels and dromedariesGroups of order 41Unicity of the identity elementLinear maps of rank 01 minute left for this integralMy first nilpotent matricesA common complementPolynômes réels positifsFREndomorphism with all eigenvectorsRoots of a quadratic equation with a parameterEstimating altitude from atmospheric pressureA classical matrix equationLes entiers consécutifs non premiersFRA fair division of the planeThe missing coinThe truncated chessboardRoots of the derivative of a quadratic polynomialTwo triangles nested in a half circleA diagonalizable matrix ?A simpler Pythagorean theoremExistence d’une racine carréeFRThe park problem 2