23-38. Preliminary work Use a table of integrals to determine the following indefinite integrals. These integrals require preliminary work, such as completing the square or changing variables, before they can be found in a table. 23. /VE |V? + 10x dr, x > 0 24. / V - 8r dr, x > 8 dx 25. 26. Vx? - 4x + 8 dx ² + 2x + 10 dx dt 27. 28. x(x10 + 1) t(t8 – 256) dx dr 29. ,x>6 - 6x 30. ,x>0 Vr? + 10x Vn?x + 4 xp: Ve + 4 31. 32. ,2x cos x cos VI 33. 34. sin? x + 2 sin x

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