What is the dot product of and ?
Answer and explanation
Correct answer: A.
- Step 1: Multiply the coordinates pairwise and add the three products. Step 2. . **Answer: . Why not the others:** : the components were added. and do not fit.
Practise more Probabilités et géométrie dans l'espace.
Free questions with an explanation for every one, and full timed French Baccalaureat mock tests.