(2+1)(2的平方加1)(2的4次方加1)。。。(2的32次方加一)加1=?
答案:3 悬赏:50 手机版
解决时间 2021-03-16 23:33
- 提问者网友:太高姿态
- 2021-03-16 17:23
(2+1)(2的平方加1)(2的4次方加1)。。。(2的32次方加一)加1=?
最佳答案
- 五星知识达人网友:执傲
- 2021-03-16 18:25
(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=1×(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2-1)(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2²-1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^4-1))(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^8-1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^16-1)(2^16+1)(2^32+1)+1
=(2^32-1)(2^32+1)+1
=2^64-1+1
=2^64
=1×(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2-1)(2+1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2²-1)(2²+1)(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^4-1))(2^4+1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^8-1)(2^8+1)(2^16+1)(2^32+1)+1
=(2^16-1)(2^16+1)(2^32+1)+1
=(2^32-1)(2^32+1)+1
=2^64-1+1
=2^64
全部回答
- 1楼网友:轮獄道
- 2021-03-16 19:52
(2+1)(2^2 +1)(2^4 +1)(2^8 +1)
=(2-1)(2+1)(2^2 +1)(2^4 +1)(2^8 +1)
=(2^2 -1)(2^2 +1)(2^4 +1)(2^8 +1)
=(2^4 -1)(2^4 +1)(2^8 +1)
=(2^8 -1)(2^8 +1)
=2^16 -1
- 2楼网友:渡鹤影
- 2021-03-16 19:37
原式=(2-1)(2+1)(2^2 +1)(2^4 +1)……(2^32 +1) +1
=(2^2 -1)(2^2 +1)(2^4 +1)……(2^32 +1) +1
=……
=(2^64 -1) +1
=2^64
思路:添一项 (2-1) 连续使用平方差公式
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