182 Part IV: Integration and Infinite Series 9. What’s the area under y = sinx from 0 to π? 10. Evaluate # 2 π sinx dx. 0 Solve It Solve It 3 2 3 2 x 11. Evaluate # _ x - 4 x + 5 x - 10i dx. 12. Evaluate # e dx. 2 - 1 Solve It Solve It