Solution---**Document Title:** FICHE D'EXERCICES : VECTEURS (1) **Exercise Title:** EXERCICE 1 **Question Stem:** 1. Construire les points A₁, B₁, C₁, D₁, images respectives de A, B, C, D par la translation de vecteur $\vec{u}$. 2. Construire les points A₂, B₂, C₂, D₂, images respectives des points A, B, C, D par la translation de vecteur $\vec{v}$. 3. Construire le point A₃ image de A par la translation de vecteur $\overrightarrow{DB}$, le point B₃ image de B par la translation de vecteur $\overrightarrow{CD}$, le point C₃ image de C par la translation de vecteur $\overrightarrow{DA}$ et enfin le point D₃ image de D par la translation de vecteur $\overrightarrow{CA}$. 4. Au vu de la figure, écrire un maximum d'égalités de vecteurs. **Chart/Diagram Description:** * **Type:** Grid with labeled points and vectors. * **Background:** A grid composed of horizontal and vertical red lines forming squares. * **Points:** Four points labeled A, B, C, and D are plotted on the grid. * Point A is located roughly in the upper central-left part of the grid. * Point B is located roughly in the lower right part of the grid. * Point C is located roughly in the lower central-left part of the grid. * Point D is located roughly in the central-right part of the grid. * **Vectors:** Two vectors are drawn and labeled. * Vector $\vec{u}$: Starts near the bottom left of the grid and points upwards and slightly to the right, ending a few grid units away. It is represented by a thick black arrow. * Vector $\vec{v}$: Starts near the top center-right part of the grid and points downwards and slightly to the right, ending a few grid units away. It is represented by a thinner black arrow. * **Relative Positioning (estimated based on grid units, assuming bottom-left is (0,0)):** * Vector $\vec{u}$: Appears to start at approximately (2,2) and end at (4,6). This represents a vector with components (2,4). * Point C: Approximately at (4,5). * Point A: Approximately at (5,8). * Vector $\vec{v}$: Appears to start at approximately (16,11) and end at (18,10). This represents a vector with components (2,-1). * Point D: Approximately at (10,7). * Point B: Approximately at (15,4). The grid appears to be about 20 units wide and 13 units high within the visible area containing the elements.

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