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Numere derivate . Calculati
1) f(x)=-3x-5/x
f ' (a) =.....

2) g(x)=2+√x
g ' ( a ) =......


Răspuns :

1)f'(x)=(-3x)'-(5/x)'=-3+5/x² ;f'(a)=-3+5/a²
2)g'(x)=2'+(√x)'=1/(2√x) ;g'(a)=1/(2√a)