Let and . Then is equal to…

MATHEMATICS · Subjective · A Level · Mathematics · Sequences and series · Sequences and series

Problem

Let A=∑i=110∑j=110min⁡{i,j}A = \sum_{i=1}^{10} \sum_{j=1}^{10} \min\{i, j\} and B=∑i=110∑j=110max⁡{i,j}B = \sum_{i=1}^{10} \sum_{j=1}^{10} \max\{i, j\}. Then A+BA + B is equal to ____.

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