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Question 1204a
Vectors I: Basics, Dot and Cross Products
Lengths of Projection
Question
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Given the vectors
a
=
(
−
9
−
2
6
)
{\mathbf{a}=\begin{pmatrix} - 9 \\ - 2 \\ 6 \end{pmatrix}}
a
=
−
9
−
2
6
and
b
=
(
9
−
2
6
)
,
{\mathbf{b}=\begin{pmatrix} 9 \\ - 2 \\ 6 \end{pmatrix},}
b
=
9
−
2
6
,
what is the length of projection of
b
{\mathbf{b}}
b
onto
a
?
{\mathbf{a}?}
a
?
Attempt
Your answer:
Answer
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