@engineer,
The problem is now due to the Covid-19 outbreak situation that happened in almost every country around the world, so I am not able to meet my lecturer and asked him question directly face to face, as all my lesson has changed to online-based lesson from the face to face lesson. I email my lecturer to asked
him about this question on how to attempt, but he did not reply my email message at all, so thats why I have no other alternative choice, but to post my math question here to seek for help, as I could not get any help from my lecturer at all, and I also have a dateline to meet to submit my this math assignment. I really need your help very much!