Question: Find the unit tangent vector for the function r with rightwards arrow on top left parenthesis t right parenthesis equals open angle brackets 2 sin

Find the unit tangent vector for the function r with rightwards arrow on top left parenthesis t right parenthesis equals open angle brackets 2 sin left parenthesis t right parenthesis comma space 4 cos left parenthesis t right parenthesis comma 4 sin squared left parenthesis t right parenthesis close angle brackets when t equals straight pi over 6

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