- #1
hocuspocus102
- 45
- 0
Homework Statement
The set B = {-4-x^2, -8+4x-2x^2, -14+12x-4x^2} is a basis for P2. Find the coordinates of p(x) = (-2 +0x -x^2) relative to this basis.
Homework Equations
n/a
The Attempt at a Solution
so the set would be in a matrix like this:
|-4 0 -1|
|-8 4 -2|
|-14 12 -4| and multiplying this by
|-2|
| 0|
|-1| as the vector for p(x) gives
| 9|
|18|
|32| but that's not the right answer and I thought that's how you'd do it.