(a) Define the average value of a real–valued function on a closed interval. (b) Let…

MATHEMATICS · Subjective · AP · Calculus AB · Applications of Integration · Applications of Integration

Problem

(a) Define the average value of a real–valued function on a closed interval. (b) Let ff be continuous on [a,b][a,b]. Give a logical explanation, without performing any calculation, to show that there is at least one point c∈(a,b)c\in(a,b) at which f(c)f(c) equals the average value of ff on [a,b][a,b]. (c) Construct an explicit example of a function that is not continuous on [0,1][0,1] for which no point c∈(0,1)c\in(0,1) satisfies f(c)=fˉf(c)=\bar f, where fˉ\bar f denotes the average value on [0,1][0,1]. Justify your claim.

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