Find the derivative of f(x)=1/3 sqrt x.

The 3 is little above the square root.

I know that it is -1/3x^-4/3. Can this be written as -1/3x^4/3 ?

2 answers

So I read this as
f(x) = x^(1/3)

f '(x) = (1/3)x^(-4/3)
which could be written as 1/(3x^(4/3)

why do you have a negative sign in front?
I had the negative sign there because thatg was one of the answer choices that best fit what I had but there is no negative correct? Its positive?
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