11. Suppose there is a new function of r called York whose domain is R and it is a positive function. As well, the derivative of York is the function Math, whose domain is also R. The two functions satisfiy (York)2 -(Math)? = 1. An antiderivative of York is the function Calculus, whose domain is also R. Compute the arc length of the curve y if y = York(x) for all x ( [0, b] where b is a positive constant. As part of your solution, state the arc length formula