Posted by Hannah on Sunday, January 30, 2011 at 9:42pm.
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?
Answer This Question
Related Questions
 math  determine the area of triangle abc when side ab= square root of x, side ...
 Calculus  find derivitive of 1/square root of x 1/square root of x = x^(1/2) ...
 algebra 2  Not sure if either one of these answer are correct to simplify the ...
 math calculus please help!  l = lim as x approaches 0 of x/(the square root of...
 algebra  simplify: square root of 5 + square root of 20  square root of 27 + ...
 Math  5L= ?cL 102mL= ?L 1895g= ?kg 2.3kg= ?g What is the square root of 36/49? ...
 math  thanks for the help but i was wondering (16 square root of x3) times(...
 Math  I can not find the solutions to the following problems using 2 methods: ...
 Math  How do you find a square root of a number that's not a perfect square? I'...
 math  What does it mean to have the sqaure root of 5 with a 2 in front of it? ...
More Related Questions