Question
8. Let {x1, x2, x3} ⊆ IR4 come from x1 = l 1 | ,
x2 = l 7 | , x3 = l 2 | .
| 4 | | 10 | l 1 |
| 2 | | -4 | l 5 |
|-3 | | -1 | l -14 |
Determine if the given vector y is in span {x1, x2, x3}. If it is, write down and check the decomposition y = α1x1+α2x2+α3x3 .
- NOTE: {x1, x2, x3} and vector y are matrices 4x1, AND α = represents greek symbol alpha
a) y = l 6 |
l 15 |
l 3 |
l -18 |
(Mostly need help with the ELIMINATION part of the question)