y! utd elearning - Yahoo X Bb Assignments - CS 230 x Bb My Grades - CS 1136. x Bb My Grades - CS 1336. x VA 2414 DHW 3 (7.2 - 7.3 X C Chegg Search x Sy integral of 1/(x^2sqrt X + V X > C a webassign.net/web/Student/Assignment-Responses/submit?dep=28809885&tags=autosave#question3804724_19 20. [0/8 Points] DETAILS PREVIOUS ANSWERS SCALCET8 7.3.AE.003. MY NOTES PRACTICE ANOTHER V x2 + 81 EXAMPLE 3 Find x2 2 + 81 dx. SOLUTION Let x = 9 tan(0), -1/2 C a webassign.net/web/Student/Assignment-Responses/submit?dep=28809885&tags=autosave#question3804724_19 de. tan2(0) To evaluate this trigonometric integral we put everything in terms of sin(0) and cos(0). sec(0) cos2(0) tan2(0) sin2(0) sing(0) Therefore, making the substitution u = sin(0), we have dx x2 x2 + 81 = de sin2(0) du 81 = 87 ( - 1) + C = 81 sin(0) - + C CSC( ) + C. 81 We use the figure to determine that csc(0) = v x2 + 81/x and so dx x2 x2 + 81 + C. Need Help? Read It Submit Answer Type here to search O 50'F Clear ~ 9 74x x 84 9:55 PM 2/9/2022 (25