a) Find the exact length of the curve.

y = ln(sec x), 0 (less thanor equal to) x (less than or equal to)pi/6

b) Find the arc length function for the curve

y = 2x^3/2

with starting point P₀(25, 250).

c) Find the exact length of the curve.

y = 1 +2x^3/2, 0 (lessthan or equal to) x (less than or equal to) 1