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Mathematics
Mathematics
Problem
Given that
∣
a
∣
=
3
|\mathbf{a}| = 3
∣
a
∣
=
3
and
∣
b
∣
=
4
|\mathbf{b}| = 4
∣
b
∣
=
4
, simplify
(
2
a
+
b
)
×
(
5
a
+
3
b
)
(2\mathbf{a} + \mathbf{b}) \times (5\mathbf{a} + 3\mathbf{b})
(
2
a
+
b
)
×
(
5
a
+
3
b
)
.
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