lim
h->0
h—*0
9(x-ł-/i) -<?(x)
h-*0
Pochodna różnicy:
/»-* 0 L . _ Ł
^(x-ł-/l) - </(x)
k-*0
lim
/i-»0
= /' (x) - s' (x)
Pochodna iloczynu:
(/ (x) . g (x))' = Hm /(^*)g(^*)-/WgW =
= lim /»-»o
h-»o h
f(x-\- h) g(x + h)- f (x) g (x) + / (x) g (x + k) - f (x) £ (x + h)
_ Hm / (*) (g (g + /Q - g (x)) + 9 (x + /i) (/ (x + h) - f (x) _ , V lim g(x + /Q -g(x) [
h—*0 h j \ > h_tQ £
9 (x) • lim ^ + ^= / (x) • 9' (x) + /' (x) • 3 (x)
• Pochodna ilorazu:
= lim
h—*0
= lim
h-»0
/»—»0 /l /V—>6 /z. • 9 (x) 9 (x + /i)
f(x + h)g(x) — f (x) g (x + h) + f (x) g (x) - f (x) g (x) _
h -g{x)g (x)
g (x) (/ (x + h) — / (x)) - / (x) (g (x + h) - g (x)) _ g (x) / (x + h) - f (x)
h- (g(x)y
lim
h-*o
/(x) g(x + H)-ff(x) /' (x) g (x) - / (x) g' (x)
lim-:- = -7-—-, gdyg (x) f- 0
h-*0