4.3 Arc Length and Curvature

Arc Length from a to b = Z b a |~ r 0(t)| dt These equations aren’t mathematically di↵erent. They are just di↵erent ways of writing the same thing. 4.3.1 Examples Example 4.3.1.1 Find the length of the curve ~ r (t)=h3cos(t),3sin(t),ti when 5 t 5. However you choose to think about calculating arc length, you will get the formula L = Z 5 5 p ................
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