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6 Cards in this Set
- Front
- Back
Fermats Theorem
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Suppose (c, f(c)) is a local extreme value for f, & assume f is differentiable at c.
Then f '(c) = 0 Remark: Just because f '(c) = 0 doesn't mean that (c, f(c)) is a local extreme value |
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Extreme Value Theorem
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Suppose f is continous on [a, b] then f attains an absolute max & absolute min on [a, b]
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critical number
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A critical number of a function f is a number x in the domain of f such that either f '(c) = 0 or
f '(c) does not exist. note: if f has a local maximum or minimum at c, then c is a critical number of f. |
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The Closed Interval Method - Finding the absolute maximum or minimum of a continuous function f on a closed interval [a,b]
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1. Find the values of f at the critical numbers of f in (a,b).
2. Find the values of f at the endpoints of the interval. 3. The largest of the values from Steps 1 and 2 is the absolute maximum; the smallest of these values is the absolute minimum value. |
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Rolle's Theorem
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Let f be a function that satisfies the following three hypotheses
1. f is continuous on the interval [a,b] 2. f is differentiable on the open interval (a,b) 3. f(a) = f(b) Then there is a number x in (a,b) such that f '(c) = 0 |
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The Mean Value Theorem
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Let f be a function that satisfies the following hypotheses:
1. f is continuous on the interval [a,b] 2. f is differentiable on the open interval (a,b) Then there is a number c in (a,b) such that: f '(c) = [f (b) - f (a)] / [b - a] |