In each of the below situations, we can set-up a single integral in terms of x to nd the arc length. For which one can you not set-up a single integral in terms of y to compute the arc-length? O A- 1: The curve y= cos [x] on the interval from - 3 5x50. 0 B. 2 1 The curve y=x on the interval 3 5x51. 0 c. 2 The curve y=x on the interval 05x5 5. O D. The curve y= cos [x] on the interval from 0 s x s 1:. Remember the arolength function for a curve 3: = x) that is continuous on some interval [e,b] from lecture: X 50:) = {4'1 + [no]2 dt 0 Write the arc-length function for the line through points P and Q in problem #2. (please enter an exact value. do not approximate} s{x) = j. dt= /'9- WW ['2' ('3) an; (Q: (1,17) Q l