Now solved: 2734. Principal unit normal vector Find the unit tangent vector T and the
Chapter 11, Problem 34(choose chapter or problem)
2734. Principal unit normal vector Find the unit tangent vector T and the principal unit normal vector N for the following parameterized curves. In each case, verify that T = N = 1 and T # N = 0. r1t2 = 8t, ln cos t9
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