MAC 2313 Midterm: MAC2313 S12 Test 1
Document Summary
Instructions: write your complete solutions on your answer sheets. No graphing calculators are allowed to be used. To receive credit, you must show all work. You are not required to simplify your answers. (1) (20 pts. ) Items (a) and (b) refer to the point a = (4, 4, 3) and the parametric line l de ned by. For the parametric plane curve r(t) = (cid:10)1 + 2t, 1 + sin2 t(cid:11) , Nd the unit tangent vector function t(t) and the unit normal vector func- tion n(t). (4) (20 pts. )
