sec* (2t) dt tan° (2t) cot (2t) cot (2t) + c cot*(2t) cot°(2t) + c C. 12 16 12 16 1 16 tan (2t) + c 20 tan10 (2t) 16 tan (2t) 20 tan10 (2t) O A О в O D E None of the Above A,

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