2734. Principal unit normal vector Find the unit tangent vector T and the principal unit

Chapter 11, Problem 28

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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 = 84 sin t, 4 cos t, 10t9

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