Suites - 2.5 - 6. [Math] Préparation aux études supérieures

Suites - 2.5

Suite arithmétique

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Calculer la raison d'une suite arithmétique telle que

\begin{equation*} \left\{\begin{array}{c} s_4 = 15\\ s_{31} = 20 + \frac{2}{5} \end{array}\right. \end{equation*}

Format example : expression: 5x+3 equation: x=y+3 inequation: x<2y+1

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Calculer le premier terme d'une suite arithmétique telle que

\begin{equation*} \left\{\begin{array}{c} s_4 = 15\\ s_{31} = 20 + \frac{2}{5} \end{array}\right. \end{equation*}

Format example : expression: 5x+3 equation: x=y+3 inequation: x<2y+1

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Calculer le terme d'ordre 20 d'une suite arithmétique telle que

\begin{equation*} \left\{\begin{array}{c} s_4 = 15\\ s_{31} = 20 + \frac{2}{5} \end{array}\right. \end{equation*}

Format example : expression: 5x+3 equation: x=y+3 inequation: x<2y+1

Author(s)	Victor Belpaire,Maxime Parmentier
Deadline	No deadline
Submission limit	No limitation
Category tags	suite, difficile