미분이란?
미분
{'answer_start': array([-1]), 'answer_text': array([''], dtype=object)}





lim

x
→
a





‖
f
(
x
)
−
f
(
a
)
−

D

a


f
(
x
−
a
)
‖


‖
x
−
a
‖



=
0


{\displaystyle \lim _{x\to a}{\frac {\Vert f(x)-f(a)-D_{a}f(x-a)\Vert }{\Vert x-a\Vert }}=0}

