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Determine which value best approximates the length of the arc represented by the integral . (Make your selection on the basis of a sketch of the arc and not by performing any calculations.) (a) -2, (b) 1, (c) , (d) 4, (e) 3.
Hence, we see that , and . Let's find and make a sketch of .
Suppose, without loss of generality, that it is . Therefore, . From the sketch, we can estimate that the length is equal to 1.
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