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x^((x-1)- 1/2 (x-1)^2+1/3((x-1)^3).- 1/4...

`x^((x-1)- 1/2 (x-1)^2+1/3((x-1)^3).- 1/4((x-1)^4).+……..` is equal to (A) `2logx` (B) `logx` (C) `x^2` (D) none of these

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