Oblicz pochodne xtan: Oblicz pochodne: a) f(t)=t^3it t>0 b) f(t)=te^2it t∊R

Adamm: a) f(t) = t^3it := exp(3it log(t)) f'(t) = exp(3it log(t)) * (3it log(t))' = f(t) * [3i log(t) + 3i] = 3i [log(t)+1] t^3it b) f'(t) = e^2it + 2i te^2it