A "fence" of Variable height h0) stands above the plane
Chapter 13, Problem 49(choose chapter or problem)
A "fence" of Variable height h0) stands above the plane curve (r (t). ,] (r.)). Thus the fence has the parametrization .r = jr(t), l :,](I).; = ; for a:t:b.0=:.:h(r). Apply Eq. (8) of Section 13.8 ro show rhat the area of the fence is
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