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A.
6t cos (3t - 5)
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B.
2t sin (3t - 5) - 3t2 cos (3t - 5)
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C.
2t sin (3t - 5) + 3t2 cos (3t - 5)
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D.
2t sin (3t - 5) + t2 cos 3t
Correct Answer: Option C
Explanation
t2 sin (3t - 5) = 2t sin ( 3t - 5) + t2 x 3 cos (3t - 5) = 2t sin (3t - 5) + 3t2 cos (3t - 5).
Detailed answer below was provided by Ifechuks, a female prospective student of Okopoly.
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