79,415 views
4 votes
4 votes
4.- Encuentre la derivada de las siguiente función f(x)= (〖5x〗^3+5x)* (x^(-4)+4x+2), utilizando las reglas de derivación respectivamente. (Regla#5) a) f^´(x)= (〖5x〗^3+5x)* (4x^(-4)+4) + (x^(-4)+4x+2)*(〖15x〗^3-5) b) f^´(x)= (〖5x〗^3+5x)* (〖-4x〗^(-5)+4) + (x^(-4)+4x+2)* (〖15x〗^2+5) c) f^´(x)= (〖5x〗^3+5)* (x^(-4)+4x+2) + (〖5x〗^3+5x)* (x^(-4)+4x)

User Cleber Goncalves
by
3.6k points

1 Answer

5 votes
5 votes

The function is given by


f(x)=((5x)^3+5x)\cdot(x^(-4)+)+x+2)

Now the derivative of the function is


f^(\prime)(x)=((5x)^3+5x)\cdot(d(x^(-4)+x+2))/(dx)+(d((5x)^3+5x))/(dx)\cdot(x^(-4)+x+2)
f^(\prime)(x)=((5x)^3+5x)\cdot(-4x^(-5)+1)+(375x^2+5)\cdot(x^(-4)+x+2)

The correct answer is b

User Maxlego
by
3.5k points