8. Write the arc length of x = y2 for 1

8. Write the arc length of :r Y2 for 1 a: 2 as a definite integral with respect to y. 9. (a) Write the arc length of y for 0 2 as a definite integral with respect to x. (b) Write the arc length of y for O a: 2 as a definite integral with respect to y. (c) Why is the integral in part (b) improper? 1 + sin2 d:r. 10. T/ F (with justification): The arc length of the curve y sin for O 7T/2 equals y Y sin