A=
A= 21+ 22+ 23 +...+2¹⁰⁰
2A= 22 + 23 +...+ 2101
2A-A=22+ 23+...+2101 - (21+ 22 + 23 +...+ 2¹⁰⁰)
A=2101 - 2
2 mũ 5
2⁵=2.2.2.2.2=32
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