a. Write an integral for the arc length of the curve y = 2/5√(25-x2) from x = 0 to x = 5. You need not evaluate the integral. Approximate your answer with LEFT(2) and RIGHT(2).
b. Write an integral for the arc length of the parametrized curve: x = cos(et) and y = sin(et) for 0 is less than or equal to t less than equal to 1. You need not evaluate the integral.