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Question 1203c
Vectors I: Basics, Dot and Cross Products
Algebra III
Question
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Given that
∣
a
∣
=
2
,
{|\mathbf{a}|=2,}
∣
a
∣
=
2
,
b
{\mathbf{b}}
b
is a unit vector, and the angle between the the vectors is
3
0
∘
,
{30^\circ,}
3
0
∘
,
what is the value of
∣
(
3
a
−
5
b
)
×
(
2
a
−
b
)
∣
?
\Big|(3 \mathbf{a} - 5 \mathbf{b})\times(2 \mathbf{a} - \mathbf{b})\Big|?
(
3
a
−
5
b
)
×
(
2
a
−
b
)
?
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Your answer:
Answer
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