Question

Ayuda es urgente doy 25 puntos

Answer 1

f(r) =-∛r

f´(r) =-∛r = -r^(1/3)= -(1/3)r^{(1/3)-(3/3)} = -(1/3)r^{-2/3} = -(1/3)(1/r^2/3)

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