The equation of the ellipse with its center at (0,0), foci at ( - c,0) and (c,0), and vertices at ( - a,0) and (a.0) is shown below. The major axis is the x-axis. 2 2 = 1, where a > b > 0 and by - a 2_ 2 a b Determine the values of a and c. Then use them to calculate the value of b. Write your answer in the given form