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3(2^2+1)(2^4+1)(2^8+1).(2^64+1)怎么写啊
题目详情
3(2^2+1)(2^4+1)(2^8+1).(2^64+1)
怎么写啊
怎么写啊
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答案和解析
解3(2^2+1)(2^4+1)(2^8+1).(2^64+1)
=3(2^2-1)(2^2+1)(2^4+1)(2^8+1).(2^64+1)/(2^2-1)
=3(2^4-1)(2^4+1)(2^8+1).(2^64+1)/3
=(2^4-1)(2^4+1)(2^8+1).(2^64+1)
=(2^8-1)(2^8+1).(2^64+1)
=(2^16-1)(2^16+1).(2^64+1)
=.
=2^128-1.
=3(2^2-1)(2^2+1)(2^4+1)(2^8+1).(2^64+1)/(2^2-1)
=3(2^4-1)(2^4+1)(2^8+1).(2^64+1)/3
=(2^4-1)(2^4+1)(2^8+1).(2^64+1)
=(2^8-1)(2^8+1).(2^64+1)
=(2^16-1)(2^16+1).(2^64+1)
=.
=2^128-1.
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