सरल कीजिए (1+y)/((1-x)(1-y^(2)))+(x^(2)...

सरल कीजिए
`(1+y)/((1-x)(1-y^(2)))+(x^(2)(y+x))/((1-x)(y^(2)-x^(2)))-(y^(2)(y+1))/((y^(2)-1)(x-y))`

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