WEBVTT
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so we have to find the length of the curve
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. Why equals X E to the negative X on
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the interval? X is greater than or equal to
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zero, but less than or equal to two.
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So first we'll find the derivative of why, so
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that we can plug that into our our clean formula
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. So that will be our derivative and given the
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interval, are a will equal zero and bebel equal
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to radical one. Plus, he'd the negative x
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minus x times each The negative x squared T X
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will go to the next page. And the problem
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asked us to use a calculator. So we'll want
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to simplify. Um, our expression under the radical
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A bit, um, so that plugging it into
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the calculator will be a bit easier. Um,
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here we can expand the expression under the radical Um
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, excuse me. Getting X minus one squared times
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e to the negative to x. So that was
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plus one under the radical T X. After plugging
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this into your calculator, you should get around 2.10
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to 4