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Intermediate Value Theorem and Rolle's Theorem to show root 
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#1
Oct2711, 12:23 PM

P: 3

1. The problem statement, all variables and given/known data
Use the Intermediate Value Theorem and Rolle's Theorem to show that f(x) = 2x2cosx has exactly one root. 2. Relevant equations 3. The attempt at a solution I'm not really sure what the question is asking for. the theorems I believe are to prove the existence of a point between a closed interval, but I have no interval, and what does it mean by "one root" 1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution 


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