f(x)=3/x+1, untuk f'(2)=....? gunakan rumus turunan

tuRUNan

y = u/v
y' = (u'v - uv')/v²

y = f(x) = 3/(x + 1)
y' = f'(x) = (0 . (x + 1) - 3(1))/(x + 1)²
y' = -3/(x + 1)²

f'(2) = -3 / (2 + 1)²
f'(2) = -3/9 = -1/3