Find the derivative.s = t5 cos t - 6t sin t - 6 cos t

A.  = - t5 sin t + 5t4 cos t - 6t cos t
B.  = - t5 sin t + 5t4 cos t - 6t cos t - 12 sin t
C.  = - 5t4 sin t - 6 cos t + 6 sin t
D.  = t5 sin t - 5t4 cos t + 6t cos t


Answer: A

Mathematics

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