Question

PLEASE SOLVE WILL GIVE MEDAL
Find the derivative of f(x) = -3/x at x=-4

Answer 1

@DanJS

Answer 2

\[f(x) = \frac{ -3 }{ x } = -3x^{-1}\]

Answer 3

normal power rule

Answer 4

(-3*-1)*x^(-1-1)

Answer 5

3x^-2

Answer 6

\[f ' (x) = 3x^{-2} = \frac{ 3 }{ x^2 }\]

Answer 7

now calculate
f ' (-4)