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Question 1204a
Vectors I: Basics, Dot and Cross Products
Lengths of Projection
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Given the vectors
a
=
(
4
−
1
8
)
{\mathbf{a}=\begin{pmatrix} 4 \\ - 1 \\ 8 \end{pmatrix}}
a
=
4
−
1
8
and
b
=
(
12
5
0
)
,
{\mathbf{b}=\begin{pmatrix} 12 \\ 5 \\ 0 \end{pmatrix},}
b
=
12
5
0
,
what is the length of projection of
b
{\mathbf{b}}
b
onto
a
?
{\mathbf{a}?}
a
?
Attempt
Your answer:
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