Solved

Find the Unit Tangent Vector of the Given Curve

Question 20

Multiple Choice

Find the unit tangent vector of the given curve.
-r(t) = ( 6 2t) i + ( 6 2t) j

A) T = ( 6 sin 2t) i - ( 6 cos 2t) j
B) T = ( 36 sin 2t) i -( 36 cos 2t) j
C) T = (sin 2t) i - (cos 2t) j
D) T = ( 6 cos 2t) i - ( 6 sin 2t) j

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