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October 20, 2014

October 20, 2014

Posted by **David** on Thursday, December 10, 2009 at 12:55am.

b)using the mean value theorom or rolle's theorom - no other methods will be accepted - prove carefully that x^3 + 9x^2 + 33x takes on the value -8 at most once

- Calculus -
**MathMate**, Thursday, December 10, 2009 at 8:30ama.

determine the domain and range of the function and conclude.

b.

Prove by contradiction:

assume that there are two or more values of x for which f(x1)=-8 and f(x2)=-8, where x1<x2.

Consider the interval [x1,x2], and apply Rolle's theorem or the mean value theorem to see if it is possible to find such x1, x2.

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