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Mathematics
Mathematics
Problem
If
a
⃗
=
(
i
+
2
j
−
3
k
)
\vec{a} = (i + 2j - 3k)
a
=
(
i
+
2
j
−
3
k
)
and
b
⃗
=
(
3
i
−
j
+
2
k
)
\vec{b} = (3i - j + 2k)
b
=
(
3
i
−
j
+
2
k
)
then calculate the angle between
(
2
a
⃗
+
b
⃗
)
(2\vec{a} + \vec{b})
(
2
a
+
b
)
and
(
a
⃗
+
2
b
⃗
)
(\vec{a} + 2\vec{b})
(
a
+
2
b
)
.
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