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Mathematics
Mathematics
Problem
Find the angle between the line
r
=
(
1
6
−
4
)
+
λ
(
−
5
2
1
)
\mathbf{r} = \begin{pmatrix} 1 \\ 6 \\ -4 \end{pmatrix} + \lambda \begin{pmatrix} -5 \\ 2 \\ 1 \end{pmatrix}
r
=
1
6
−
4
+
λ
−
5
2
1
and the plane
3
x
−
4
y
+
2
z
=
10
3x - 4y + 2z = 10
3
x
−
4
y
+
2
z
=
10
.
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