28. [0.5/4 Points] DETAILS PREVIOUS ANSWERS SCALCET8 6.3.002. Let S be the solid obtained by rotating the region shown in the figure about the y-axis. (Assume a = 4 and b = 2.) y = a sin(bx) 0 Sketch a typical approximating shell. 2 y 1 -1 /b 2.0 1.5 1.0 X 0.2 0.4 0.6 0.8 1.0 0.5 y MY NOTES PRACTICE ANOTHER 4 4 y 3 2 2 1 x -1.5 -1.0 0.5 1.0 1.5 Find its circumference c and height h. c(x) = 2x h(x) = 9 sin (3x) X 0.5 1.0 1.5 -2 1 2 X -1.5 -1.0 0.5 0.5 1.0 1.5 Find its circumference c and height h. c(x) = 2x h(x) = 9 sin (3x) Use shells to find the volume V of S. V = 6 Need Help? Read It Viewing Saved Work Revert to Last Response -2 2 X 0.5 1.0 1.5