Use the Gram-Schmidt process to construct an orthonormal basis for the following subspaces of R3: (a) The

Question:

Use the Gram-Schmidt process to construct an orthonormal basis for the following subspaces of R3:
(a) The plane spanned by (0. 2, l)T, (1, - 2, - l)T;
(b) The plane defined by the equation 2x - y + 3z = 0:
(c) The set of all vectors orthogonal to (1, - 1, - 2)T.