bac-s-maths 2013 Q1

bac-s-maths · France · antilles-guyane Vectors: Lines & Planes MCQ: Identify Correct Equation or Representation
In the orthonormal frame $(A ; \overrightarrow{AB} ; \overrightarrow{AD} ; \overrightarrow{AE})$, $ABCDEFGH$ denotes a cube with side length 1. $I$ is the midpoint of $[AE]$, $J$ is the midpoint of $[BC]$.
a. Lines $(IJ)$ and $(EC)$ are strictly parallel. b. Lines $(IJ)$ and $(EC)$ are non-coplanar. c. Lines $(IJ)$ and $(EC)$ are intersecting. d. Lines $(IJ)$ and $(EC)$ are coincident. 
In the orthonormal frame $(A ; \overrightarrow{AB} ; \overrightarrow{AD} ; \overrightarrow{AE})$, $ABCDEFGH$ denotes a cube with side length 1. $I$ is the midpoint of $[AE]$, $J$ is the midpoint of $[BC]$.

a. Lines $(IJ)$ and $(EC)$ are strictly parallel.\\
b. Lines $(IJ)$ and $(EC)$ are non-coplanar.\\
c. Lines $(IJ)$ and $(EC)$ are intersecting.\\
d. Lines $(IJ)$ and $(EC)$ are coincident.
Paper Questions
QExercise 2 - Part A QExercise 2 - Part B QExercise 3 QExercise 4 Q1 Q2 Q3 Q4 Q5