If $y = t^2 \\cos t + \\sin 4t$, find $\\frac{dy}{dt}$.

University of Ilorin MTH102 integral past question

1. $2t \\cos t - t^2 \\sin t + 4 \\cos 4t$
2. $2t \\cos t + t^2 \\sin t + 4 \\cos 4t$
3. $2t \\cos t - t^2 \\sin t - 4 \\cos 4t$
4. $2t \\sin t - t^2 \\cos t + 4 \\cos 4t$

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