Question: Find the derivative of the vector function r(t) = tax (b + tc), where a = (5, 1, -3), b = (4, -2, -2),

Find the derivative of the vector function r(t) = tax (b +

Find the derivative of the vector function r(t) = tax (b + tc), where a = (5, 1, -3), b = (4, -2, -2), and c =(4,-1,5). r'(t) = (

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