a.) Calculate the arc length of y=x^2 from [0,1]

- For this one I used the formula the for arc length and got stuck once I used trig substitution.

b.) Compute the surface area of revolution about the x-axis for y=x^2 from [0,4]

- For this problem I used the formula surface area of revolution, but when I plugged my results in my calculator I got -6,036, which I'm assuming is incorrect.