63
XVx + 6 dx 53. X (r +1)/2- x dx 56. 1- x dx 55. 2x + 1 dx x2-1 dx 58 57. x + 4 2x- 1 secs 7x tan 7x dx 60. cos3 2x sin 2x dx 59. In Exercises Evaluating a Definite Integral 61-68, evaluate the definite integral. Use a graphing utility to verify your result. x3(2x41)2 dx 61. 62. 0 2x2x3 1 dx 63. x/1 - dx 64. 1 4 1 65. dx 2x + 1 dx 1 + 2x2 0 5 1 67. х dx 68. Vx(I+ dx 2х - 6 4
The given integral is,
2 2xVxldx 1
Evaluate the given integral as follows.
Let ux1. Then du = 3x'dx Also when x 1 u 2 when x 2, u 9
Therefore...
Vudu |2x2 Vx +1dx 3 2 и'du 3 2 4 95-22) 4 (27-22) 12 9 =10.74292128
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