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Mathematics
Mathematics
Problem
Find the dot product
a
⋅
b
\mathbf{a}\cdot\mathbf{b}
a
⋅
b
if
∣
a
∣
=
3
|\mathbf{a}| = 3
∣
a
∣
=
3
,
∣
b
∣
=
4
|\mathbf{b}| = 4
∣
b
∣
=
4
and the angle between them is
60
∘
60^\circ
6
0
∘
. a)
6
3
6\sqrt{3}
6
3
b)
6
6
6
c)
12
12
12
d)
−
6
-6
−
6
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