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Let y=1/3 log\ (x+1)/sqrt(x^2-x+1)+1/sqr...

Let `y=1/3 log\ (x+1)/sqrt(x^2-x+1)+1/sqrt3 tan^-1\ (2x-1)/sqrt3` statement 1: `dy/dx` at `x=0` is `1` statement 2: `(dy)/(dx)=2/(x^3+2)`

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