1. Linear Combination
Two linear operations of vectors:
Linear combination:
2.Geometric Explainations
2D case
3D case:for 3 vectors u,v,w,the important questions are
the common answers are:
3. From Linear Equations to Linear Combinations:
a.Row picture: intersection of planes or lines
b.Column picture: find combinations of column vectors to generate b
4.Matrix form for Ax=b
