4. Let C be the closed curve defined by r(t) = costi + sin tj +...

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4. Let C be the closed curve defined by r(t) = costi + sin tj + sin 2tk for 0 <t< 27. (a) [5 pts) Show that this curve C lies

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Answer 1

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hlha <cost, sint, sin aty ost sra defined by for a les in the surfalls 2= 2014 then rwin Gatisfies the surfou s Z = Z 2 Kost) 3 sxv«) nasz: }<-2, 4-34°)•4-29, -24, 13 do - (8 xy? +22342) DA 22 25 1 using paramnization 56(80? costsint + 27 10st – 3o4s

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