Answer Happy

Find the volume of a solid obtained by rotating the region enclosed by the graphs of y = e¯*, y = 1 - e*, and x = 0 about y = 4. (Use symbolic notation and fractions where needed.)

Calculation by the Disk Method for washer. of the volume of revolution If f, g are continuous on [a, b], then the solid obtained by rotating the region between two curves y = f(x) and y = g(x), where ƒ(x) ≥ g(x) ≥ 0, about the x-axis has volume b V T = π [*ª* (ƒ(x)² – g(x)³²) dx a