Question 4 5 pts Evaluate the integral: f sin 2x sin x da O cos's x - cos3 x + C O ; cos3 x - cos5 x + C O cost x - cos3 x + C O -sin'x + sin'x + C Question 5 5 pts Evaluate: 1 sin (In x) cos (In x) dx 2+ sin 2 8 O 4-sin 4 32 4+ sin 4 32 O 2-sin 4 16