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Let f be any function continuous on [a,b] and twice differentaible on (a,b). If for all x∈(a,b), f′(x)>0 and f′′(x)<0, then for any c∈(a,b),f(c)−f(a)f(b)−f(c) is greater than : |
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Answer» Let f be any function continuous on [a,b] and twice differentaible on (a,b). If for all x∈(a,b), f′(x)>0 and f′′(x)<0, then for any c∈(a,b),f(c)−f(a)f(b)−f(c) is greater than : |
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