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Calculus
The function f is continuous on the closed interval [5,5], and f(2) = 6, f(1) = 3, and f(4) = 6. Which of the following statements must be true? A. The equation f(x) = 0 has at least two solutions on the closed interval [5,5].
asked by Anonymous on April 24, 2017 
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The statement below is false. Correct it by changing two symbols. "The interval (a,b) contains its infimum and its supremum." I'll give you a hint. The interval (a, b) is an open interval. What you need is a closed interval.
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The function f is continuous on the closed interval [0,6] and has values that are given in the table above. The equation f(x)=3 must have at least two solutions in the interval [0,6] if k= ? A. 0 B. 1 C. 1 D. 2 E. 3
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asked by Anonymous on September 22, 2013