Steps to solve Find the derivative of d{(x-1)/(x+1)}^2/dx
=d{(x-1)/(x+1)}^2/dx
=2[d{(x-1)/(x+1)}/dx]
=2[(x+1){d(x-1)/dx}-(x-1){d(x+1)/dx}]/(x+1)^2
=2[{(x+1).1-(x-1)}/(x+1)^2]
=2{(x+1-x+1)/(x+1)^2}
=2{2/(x+1)^2}
=4/(x+1)^2
Hence the derivative of d{(x-1)/(x+1)}^2/dx is 4/(x+1)^2
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