For the vector-valued function r(t) = cos(t)i + sin(t)j + 2tk Find r'(t). r'(t)=-i sint + j cos t + 2k O r(t) = i sin t + j cost + 2k O r(t) = i sint -j cos t + 2k O r(t) = -i sint -j cost + 2k

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A: Topic = Functions

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Q: The result of dy/dx for the following function is COS X y = 1+sin x

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Q: 4.[(5x³ 5.Ĵ(6x² − 2x² +4x)dx − 3x+1)dx

A: Topic = Derivative