Hello,
I'm an expert in C++ programming and I can implement your 9 attached tasks.
I have a few questions:
1. When your teacher said "Write a user defined-method that ..." I understand that this a a method from a class. Let me know if you are supposed to use classes or just simple C++ functions.
2. Point 7, you can't invert a rectangular matrix. Only a square matrix can be inverted. Let me know what you think.
The code will be fully commented and I will also be available for explanations if you need.
Thanks,
Paul