Grant Turner
12/27/2023 · Elementary School
Exercice 6: Soient \( A, B \) et \( C \) trois points non alignés du plan 1) Construire les points \( D \) et \( E \) tels que \( \overrightarrow{A D}=\frac{4}{3} \overrightarrow{A B} \) et \( \overrightarrow{C E}=\frac{1}{3} \overrightarrow{A C} \) \( \left.Q_{2}\right) \) Montrer que les deux droites \( (B C) \) et \( (D E) \) sont parallèles
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1. Find coordinates of points \( D \) and \( E \) using vectors \( \overrightarrow{AD} \) and \( \overrightarrow{CE} \).
2. Show that lines \( (BC) \) and \( (DE) \) are parallel by checking if their direction vectors are proportional.
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