Find the unit tangent vector of the given curve.r(t) = (5 sin3 8t)i + (5 cos3 8t)j
A. T = (5 sin 8t)i - (5 cos 8t)j
B. T = (120 sin 8t)i -(120 cos 8t)j
C. T = (5 cos 8t)i - (5 sin 8t)j
D. T = (sin 8t)i - (cos 8t)j
Answer: D
Mathematics
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Mathematics