grandes-ecoles 2012 QI.B

grandes-ecoles · France · centrale-maths1__psi Sequences and Series Properties and Manipulation of Power Series or Formal Series
Show that if $E$ is not empty, then $E$ is an unbounded interval of $\mathbb{R}$. 
Show that if $E$ is not empty, then $E$ is an unbounded interval of $\mathbb{R}$.
Paper Questions
QI.A QI.B QI.C QII.A QII.B QII.C QIII.A QIII.B QIII.C QIII.D QIV.A QIV.B QIV.C QIV.D QV.A QV.B QV.C QV.D QV.E QV.F QV.G QVI.A QVI.B QVI.C QVII.A QVII.B QVIII.A QVIII.B QVIII.C QVIII.D QVIII.E QVIII.F QVIII.G