Math Problem Statement

ABC un triangle ,AM =3AB et CN=-2CA (vecteurs),mq AN=3AC et MN =3BC (vecteurs),en deduire que (MN)//(BC)

Solution

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Math Problem Analysis

Mathematical Concepts

Vector Geometry
Parallel Vectors
Triangle Properties

Formulas

\overrightarrow{MN} = \overrightarrow{ON} - \overrightarrow{OM}
\overrightarrow{BC} = \overrightarrow{OC} - \overrightarrow{OB}

Theorems

Collinearity of Vectors
Parallel Vectors Theorem

Suitable Grade Level

Grades 10-12