Question 30
VectorsIf 2i + pj and 4i − 2j are perpendicular, find the value of p.
- A.2
- B.3
- C.4
- D.5
Show the answer and explanation
Answer: C (4)
Explanation
Perpendicular vectors have zero dot product: 8 − 2p = 0, so p = 4.
If 2i + pj and 4i − 2j are perpendicular, find the value of p.
Answer: C (4)
Perpendicular vectors have zero dot product: 8 − 2p = 0, so p = 4.