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Mathematics
Mathematics
Problem
Let
A
=
∑
i
=
1
10
∑
j
=
1
10
min
{
i
,
j
}
A = \sum_{i=1}^{10} \sum_{j=1}^{10} \min\{i, j\}
A
=
∑
i
=
1
10
∑
j
=
1
10
min
{
i
,
j
}
and
B
=
∑
i
=
1
10
∑
j
=
1
10
max
{
i
,
j
}
B = \sum_{i=1}^{10} \sum_{j=1}^{10} \max\{i, j\}
B
=
∑
i
=
1
10
∑
j
=
1
10
max
{
i
,
j
}
. Then
A
+
B
A + B
A
+
B
is equal to ____.
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