Turunan pertama g(x)=x-1/x^2-1 adalah g'(x)=......

U'v - V'u / v²
U'= 1
V'=2x
U'v - V'u /v²
1.(x²-1) - 2x.(x-1) /(x²-1)²
(x²-1) -2x²+2x /(x²-1)²
-x²+2x-1 / (x²-1)²
(x-1)(-x+1) / (x²-1)²
(x-1)(-x+1) / (x²-1)(x²-1)
(x-1)(-x+1) / (x-1)(x+1) . (x-1)(x+1)
-1 (x-1) / (x+1).(x-1)(x+1)
= -1 / (x+1)²