(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=?

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(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=?
(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=?

(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1=?
(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
= 1/2 * (3-1) * (3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
= 1/2 * (3^2-1) * (3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
= 1/2 * (3^4-1) * (3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
= 1/2 * (3^8-1) * (3^8+1)(3^16+1)(3^32+1)+1
= 1/2 * (3^16-1) * (3^16+1)(3^32+1)+1
= 1/2 * (3^32-1) * (3^32+1)+1
= 1/2 * (3^64-1) + 1
= 3^64/2 - 1/2 + 1
= 3^64/2 + 1/2

你好

原式左边配一个1=1/2(3-1)

1/2(3-1)(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
=1/2(3^2-1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
=1/2(3^4-1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1

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你好

原式左边配一个1=1/2(3-1)

1/2(3-1)(3+1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
=1/2(3^2-1)(3^2+1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
=1/2(3^4-1)(3^4+1)(3^8+1)(3^16+1)(3^32+1)+1
=...
=1/2(3^64-1)+1
=1/2(3^64+1)

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收起

  原式=1/2(3^64-1)+1
  =(3^64+1)/2
  ∵3^1=3,3^2=9,3^3=27,3^4=81,3^5=243,……
  ∴3^64的末尾数是1,
  3^64+1的末尾数是2
  因此,(3^64+1)/2的末尾数是1。