Question

efetue as derivadas a) f(x)=-7 x elevado a 5 + 2/3 x a quarta -7/8x a segunda - 21x

Answer 1

Resposta:

Dada a função:

$f(x) = -7x^{5} + \frac{2}{3}x^{4} - \frac{7}{8}x^{2} - 21x ,$

sua derivada é:

$\frac{df}{dx} = -7(5)x^{4} + \frac{2}{3}(4)x^{3} - \frac{7}{8}(2)x - 21\\\\\frac{df}{dx} = -35x^{4} + \frac{8}{3}x^{3} - \frac{7}{4}x - 21.$