The following vectors form an ordered basis E = [v1, v2] of the subspace V = span(v1,v2):
v1 = (1,2,1)^T , v2 = (3,2,1)^T.
The vector v = (24,-8,-4)^T belongs to the subspace V. Find its coordinates (c1,c2)^T = [v]E relative to the ordered basis E = [v1,v2].
The Attempt at a Solution
I am not quite sure how to approach this problem. I wanted to calculate the inverse of:
and then multiply v = (24, -8, -4)^T by the inverse to get the coordinate vector relative to E, however I have no idea if that is the right approach. I feel I'm missing something...