A machinist is required to manufacture a circular metal disk with area 1000 cm2. a. What radius produces such a disk? b. If the machinist is allowed an error tolerance of (5 cm2 in the area of the disk, how close to the ideal radius in part (a) must the machinist control the radius? c. In terms of the ε, definition of limx → a f(x) = L, what is x? What is f(x)? What is a? What is L? What value of ε is given? What is the corresponding value of ?