ada yg tau definisi turunan?

=>f'(x)=f(x+h)-f(x)/h
=>f(x)=ax^n
f'(x)=a.nx^n-1
=>a/x^n=a.x^-n
=>√x=a.x^1/2
=>√x^n=(x^n)^1/2
=>y=u.v
y'=u'.v+u.v'