Question

Tolong ya dibntu,soal nya kumpul nya sekarang

Answer 1

Verified answer

Jawab

4.  y = x/(x² +1)

u = x → u' = 1
v = x² + 1 → v' = 2x

y = u/v 
y' = (u'v - uv')/(v²)
y' = {1(x² +1) - x(2x)} / (x² +1)²
y' = (x² + 1 - 2x²) / (x² +1)²
y' = (1 - x²)/(x² +1)²