2 tan (4x – 1) – 3 cos?(4x – 1) cos (4x – 1) If we let u= 4x - 1 for the integral of dx, what will be the resulting formula? sin u sec?u - 3 cos?u sec u) du B 2 tan u sec u - 3 cos u) du © -4 fe2t tan u sec u - 3 cos u) du tan u sec u - 3 cos u)du

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