Question: 2 7 - 3 4 . Principal unit normal vector Find the unit tangent vector T and the principat unit normal vector N for the

27 - 34 .

Principal unit normal vector Find the unit tangent vector T and the principat unit normal vector N for the following purnmeterited curves. In each case, verify that

| T | = | N | = 1

and

T * N = 0 .

27 . r (t) = (

2 s i n t, 2 c o s t

)

2 7 - 3 4 . Principal unit normal vector Find the

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