
两道题不会求大神解答,感激不尽
3个回答
展开全部
解:都是考察平方差公式
(1)
原式
=2013²-(2013-1)×(2013+1)
=2013²-(2013²-1)
=1
(2)
原式
=1(2+1)(2^2+1)(2^4+1)(2^8+1)+1
=(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)+1
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)+1
=(2^4-1)(2^4+1)(2^8+1)+1
=(2^8-1)(2^8+1)+1
=2^16-1+1
=2^16
=65536
如仍有疑问,欢迎追问!
(1)
原式
=2013²-(2013-1)×(2013+1)
=2013²-(2013²-1)
=1
(2)
原式
=1(2+1)(2^2+1)(2^4+1)(2^8+1)+1
=(2-1)(2+1)(2^2+1)(2^4+1)(2^8+1)+1
=(2^2-1)(2^2+1)(2^4+1)(2^8+1)+1
=(2^4-1)(2^4+1)(2^8+1)+1
=(2^8-1)(2^8+1)+1
=2^16-1+1
=2^16
=65536
如仍有疑问,欢迎追问!
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