Tentukan fungsi turunan pertama dari f(x) = x + 1 / x - 1

Diferensial

f(x) = u/v = (x + 1)/(x - 1)

f'(x)
= (u'v - uv')/v²
= (1(x - 1) - (x + 1)1)/(x - 1)²
= -2/(x - 1)² ✔