[微積] 函數微分
set
3 x=0
f(x)= -x^2+3x+3 0<x<1
x+4 1=<x=<2
f'(x)= -2x+3 0<x<1
1 1<x<2
Just want to ask if f'(1-)=f'(1+)=f'(1)
or there is no definition on f'(1) ?
THX~
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