Practice variation 2 of 3
Vectors — Rhombus diagonals
Your question
Explain why and are perpendicular when .
This practice question was inspired by Question 13(a) in the 2022 NSW HSC Mathematics Extension 1 examination, © NESA. It is an original TestMum variation that practises the same mathematical idea, not an official NESA question.
Before you check
- Have you stated every choice or assumption?
- Can another student follow each line?
- Did you verify the final result independently?