- #1
triucsd
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Homework Statement
Let W be a subspace of ℝ4 spanned by the vectors:
u1 = [1; -4; 0; 1], u2 = [7; -7; -4; 1]
Find an orthogonal basis for W by performing the Gram Schmidt proces to there vectors. Find a basis for W perp (W with the upside down T).
Homework Equations
Gram Schmidt
The Attempt at a Solution
I applied the Gram Schmidt process and found the basis for W which was {[1; -4; 0; 1], [5; 1; -4; -1].
Here's where I run into the problem. I'm trying to get the basis for W perp, but I don't really know what to do. I tried finding the basis for the transpose of W, I got x3 and x4 as the free variables, but the resulting vectors I got was wrong, where do I start from here?
Thanks.