- Graph f (x) = cos x and g(x) = x^2 − 1 in [−2, 2] × [−2,2], Here, y 1 = f and y 2 = g.
(a) Solve cos x = x^2 − 1 to find the two points of intersection: (1.177,0.384) and (−1.177,0.384).
(b) Since ΔA = (y 1 − y 2 ) Δx = [f (x) − g(x)] Δx, the area A bounded by the two curves is