作业帮计算:[1/(x-y) - 1/(x+y) + 2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 03:57:00
计算:[1/(x-y) - 1/(x+y) + 2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
计算:[1/(x-y) - 1/(x+y) + 2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
计算:[1/(x-y) - 1/(x+y) + 2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
[1/(x-y) - 1/(x+y) + 2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
=2y/(x^2-y^2)+2y/(x^2 + y^2) - 4x^2 y/(x^4 + y^4)
=4x^2y/(x^4-y^4)- 4x^2 y/(x^4 + y^4)
=8x^2y^5/(x^8-y^8)
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