calculus
posted by Aubrey .
Find the value or values of c that satisfy the equation
f(b)f(a)/ba = f'(c)
in the conclusion of the mean value theorem for the given function and interval
f(x)= x^(2/3) , [0,1]

y = x^(2/3)
at x = 1 which is b
y = 1^(2/3) = 1
at x = 0 which is a
y = 1^0 = 1
y(1)  y(0) = 1  0 = 1
b  a = 1  0 = 1
so
1/1 = 1
so according to the mean value theorem somewhere between x = 0 and x = 1 the derivative = 1
dy/dx = (2/3) x^1/3 = (2/3)/x^(1/3)
when is that equal to one?
x^(1/3) = 2/3
(1/3) log x = log 2/3
log x = .52827
x= .296 
y = x^(2/3)
at x = 1 which is b
y = 1^(2/3) = 1
at x = 0 which is a
y = 0^0 = 0
y(1)  y(0) = 1  0 = 1
b  a = 1  0 = 1
so
1/1 = 1
so according to the mean value theorem somewhere between x = 0 and x = 1 the derivative = 1
dy/dx = (2/3) x^1/3 = (2/3)/x^(1/3)
when is that equal to one?
x^(1/3) = 2/3
(1/3) log x = log 2/3
log x = .52827
x= .296 
The answer in my textbook says 1 for the value of c. I don't understand how it arrived there.

Nor do I

Sounds like they wanted f'(c) rather than c.
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