sec4 x 21) tan3/2 x A) _ -1 + C tan1/2 x B) - 14 tan- 1/2 x sec4 x + 7 tan-3/2 x sec5 x+ C C)? tan- 7 tan1/2 x + C - 3/2 X + 3 - 14 D). 1/2 x 14 tan3/2 x+ C 3 tan

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