If p(x) and q(x) are arbitrary polynomials of degree at most 2, then the mapping <p,q> = p(-3)q(-3) + p(0)q(0) + p(3)q(3) defines an inner product in P3. Use this inner product to find <p,q>, ||p||, ||q||, and the angle θ between p(x) and q(x) for p(x) = 4x^2 + 6 and q(x) = 4x^2 - 3x.
<p,q> =
||p|| ||q||
θ
radians