Consider x=(e^t)+(e^-t), y=5-2t, 0<t<3. Find the length of the curve.
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Recall the arc length integral: Where, So we have: . Then, . So, . Then, Arc Length =
ok i get it but how did you get the 2cosht from (e^t)-(e^-t)?
Check out hyperbolic cosine from wikipedia: Hyperbolic function - Wikipedia, the free encyclopedia
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