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Find the unit tangent vector T and the principal unit normal vector N for the following parameterized curve. Verify that | T) = |N) =

Find the unit tangent vector T and the principal unit normal vector N for the following parameterized curve. Verify that | T) = |N) = 1 and T . N = 0. 12 r(t) = 212 - 4t,7 T = N =

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