- #1
slugbunny
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Homework Statement
Let W be the subset of all P3 defined by
W={p(x) in P3: p(1)=p(-1) and p(2)=p(-2)}
Show that W is a subspace of P3, and find a spanning set for W.
Homework Equations
The Attempt at a Solution
This is homework we can correct. I've attached my work. The first one with red and purple writing is what I submitted. The black and yellow one is my redo attempt.
On my original one, the TA wrote in red and I wrote random stuff in purple.
In my redo, I first attempted to prove W is a subspace using the closure, multiplication, and zero vector properties.
I don't know how to find the spanning set. Is that a way to get it without guessing? I understand the answer but I don't know how to get it.