(x-1/x)(x+1/x)(x2+1/x2)(x4+1/x4)(x8+1/x8)(x16+1/x16)
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解决时间 2021-03-22 21:30
- 提问者网友:饥饿走向夜
- 2021-03-22 07:34
(x-1/x)(x+1/x)(x2+1/x2)(x4+1/x4)(x8+1/x8)(x16+1/x16)
最佳答案
- 五星知识达人网友:荒野風
- 2021-03-22 08:01
(x-1/x)(x+1/x)(x^2+1/x^2)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)
=(x^2-1/x^2)(x^2+1/x^2)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)
=(x^4-1/x^4)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)
=(x^8-1/x^8)(x^8+1/x^8)(x^16+1/x^16)
=(x^16-1/x^16)(x^16+1/x^16)
=x^32-1/x^32
=(x^2-1/x^2)(x^2+1/x^2)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)
=(x^4-1/x^4)(x^4+1/x^4)(x^8+1/x^8)(x^16+1/x^16)
=(x^8-1/x^8)(x^8+1/x^8)(x^16+1/x^16)
=(x^16-1/x^16)(x^16+1/x^16)
=x^32-1/x^32
全部回答
- 1楼网友:青尢
- 2021-03-22 08:57
原式=(x-1/x)(x+1/x)(x2+1/x2)(x4+1/x4)(x8+1/x8)(x16+1/x16)(x2-1)除以(x-1/x)
=(x^2-1/x^2)(x2+1/x2)(x4+1/x4)(x8+1/x8)(x16+1/x16)(x2-1)除以(x-1/x)
=(x32-1/x32)x
=x33-1/x31.我是数学百事通,数学问题想不通,快上数学百事通!
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