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Help me please, thank you! 1. Given the vector-valued for R(t) = (2sin 2t - 1)i + 2 cos 2tj + 3tk. (a) Find the

Help me please, thank you!

1. Given the vector-valued for R(t) = (2sin 2t - 1)i + 2 cos 2tj + 3tk. (a) Find the length of the arc of the curve from t = 0 to t = 2 (b) Find the unit tangent, unit normal and unit binormal vectors at 1 =

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