[Math][Linear Algebra] Linear Combination

Finite Dimensional Linear Algebra: I learned Linear Algebra by this book.
Linear Algebra Done Right: My professor who taught vector space when I was freshman recommended to read this book.



    














I also learned about linear combination. Literally, it means some elements are combined "linearly" .

Mathematical definition of linear combination is at below.


Let V be a vector space over a field F.  Let

since