Question: 7. Find the unit tangent vector T(t) for helix r(t) = , where 0 Et ( b ) V 3 () (d) Vo (e) V7

7. Find the unit tangent vector T(t) for helix r(t) =

7. Find the unit tangent vector T(t) for helix r(t) = , where 0 Et ( b ) V 3 () (d) Vo (e) V7 7 (f) none of these 8. Find the arc lenghth of helix r(t) = , 0

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