gunakan definisi turunan untuk mencari turunan fungsi f(x) = x / x-5

jawab


f(x) = x/ x-5

u = x
u'= 1

v = x-5
v'= 1

f'(x)=  (u'v - uv') /v²

f'(x) = { 1(x-5) - x(1)} / (x -5)²

f'(x) = (x - 5 - x) / ( x- 5)²

f'(x) = - 5/(x - 5)²