Further MathematicsVectorsWAEC
Find the scalar (dot) product of a = 2i + 3j and b = 4i − j.
Show answer
Answer: A. 5
(2)(4) + (3)(−1) = 8 − 3 = 5.
An AdmitMe practice question, written for the WAEC syllabus. Not an official past question.
Further Mathematics · Vectors
Discussion
Ask about a step, share a shortcut, or explain it your way. Be kind; no links.
No comments yet. Be the first to explain it.