Question: Question 9 ( 4 points ) Find the unit tangent vector T and the principal unit normal vector N . T = ( s i

Question 9(4 points)
Find the unit tangent vector T and the principal unit normal vector N .
T=(sint)i-(cost)k;N=(cost)i-(sint)kT=(sint)i+(cost)kN=(cost)i-(sint)kT=(-sint)i+(cost)k;N=(-cost)i+(sint)kT=(-sint)i+(cost)k;N=(-cost)-(sint)kr(t)=(ln(cost)+6)i+7j+(2+t)k,-2
T=(sint)i-(cost)k;N=(cost)i-(sint)k;
T=(sint)i+(cost)kN=(cost)i-(sint)k
T=(-sint)i+(cost)k;N=(-cost)i+(sint)k
T=(-sint)i+(cost)k;N=(-cost)-(sint)k
Question 9 ( 4 points ) Find the unit tangent

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