Posted by Daniella on Tuesday, November 13, 2012 at 11:42pm.
Consider f(x)=x^3x over the interval [0,2].
Find all the values of C that satisfy the Mean Value Theorem (MVT)

Calculus  Steve, Wednesday, November 14, 2012 at 10:22am
f(0) = 0
f(2) = 6
the slope of the secant is thus (60)/(20) = 3
f'(x) = 3x^2  1
The only place in [0,2] where f'=0 is at x = 1/√3
f' > 0 only on [1/√3,2]
f' = 6 when 3x^21=6, or x = √(7/3) = 1.527
That is the only C in [0,2] which satisfies the MVT.

Calculus  Steve, Wednesday, November 14, 2012 at 10:23am
oops. we wanted f'=3, not 6. adjust your solution.
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