The reduction ally express / s even). 7.1 Exercises 1-4 Evaluate the integral using integration by parts with the indicated choices of u and du. 1. [ xe" dx; u = x, do = el dx 2. Vx In xdx; u = Inx. du = Vx dx 3. | x cos 4xdx; 1 = x, du = cos Ax dx 4. sin 'xdx; u = sin 'x, du = dx 5-42 Evaluate the integral 5. tell di 6. [ ye dy 7. x sin 10x dx 8. [(w - x) cos wx dx