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 ?
Math(Please check) - Reiny, Sunday, January 30, 2011 at 9:58pm
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?
Math(Please check) - Hannah, Sunday, January 30, 2011 at 10:05pm
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?