1. In the following case, determine whether or not u is in the plane spanned by v and w.
u = , v = , w =
What I was thinking I had to do was do the following:
= a + b
and then from here I would solve for a and b but I have no idea if it's right
Thanks in advance to whoever helps!
[QUOTE=qzno;680875]1. In the following case, determine whether or not u is in the plane spanned by v and w.
u = , v = , w =
What I was thinking I had to do was do the following:
= a + b [quote]
I see no reason to use "x" and "y" when you are given specific components for u.
Why not
which gives you two equations for a and b.
By the way, using "\begin{pmatrix}... \end{pmatrix} is a little easier than "\(\begin{array}{cc}... \end{array}\right)"! The "p" is for "parentheses" \begin{bmatrix} gives brackets:and then from here I would solve for a and b but I have no idea if it's right
Thanks in advance to whoever helps!
\begin{pmatrix} 4 \\ 9\end{pmatrix}:
\begin{matrix} 4 \\ 9 \end{pmatrix}: