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quiz11ans - N κ = 1 t B = a 1 A or B = k Bonus(1pt What is...

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Math 222, Quiz 11 Name: Instructions: Answer the following questions fully. 1) 2) Find the unit tangent vector T , the principal unit normal N , the curvature κ , and the binormal B , for the curve r ( t ) = ( cos t + t sin t, sin t t cos t, 2 ) . T is ( cos t, sin t, 0 ) , since | v | = t . d T dt is (− sin t, cos t, 0 ) . Since it has length 1, this is also
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Unformatted text preview: N . κ = 1 t B = a , , 1 A , or B = k Bonus (1pt): What is the name of Tina Fey’s character on “30 Rock”? Her name is Liz Lemon. You should watch the show, it’s really funny. 1...
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