f(x) = (3x+1)/(x+2) tentukan nilaif'(-1).....

Kelas 11 Matematika
Bab Turunan

f(x) = u/v
f' (x) = (u' v - u v')/v²

f(x) = (3x + 1)/(x + 2)
f' (x) = (3 . (x + 2) - (3x + 1) . 1)/(x + 2)²
f' (-1) = (3 . (-1 + 2) - (3 . (-1) . 1) . 1) / (-1 + 2)²
f' (-1) = (3 . 1 - (-3 + 1) . 1)/1²
f' (-1) = (3 + 2)/1
f' (-1) = 5