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MA442-HW14-Arc-Length-Sec8.1: Problem 28 Previous Problem Problem List Next Problem (1 poine) Find the arc length of the curve y = 5(x2 + 8 In(x)) from x = 4 to x = 8 Length = Preview My Answers Submit Answers You have attempted this problem O times. You have unlimited attempts remaining. Email instructor

Answer 1

2=4 to Eq. of curve, x= Y = (-x2+ 8 6160) All length of curve, x=b 2 da 2-a now, y = dx (-x² + 8 lux) &(-22 + 8 +] - (-:-) į - 2 ) ² = 1 1 1 2 + x 2 - 2 2 dy du 0-8 dx + 1+ -) x2 3-4 dre 11 12 + x 2 + x=4 + x12 JE (3 + 3)? 4 da $443) 4 8 [luxo enot *] ln (8-4) + (8-42) 6 + ln (4) 7.386 Ln(4) - 1.386 Arm LE Ans.