This is from a previous assignment, please kindly share the solutions to questions:

1b, 2b, 2d, 2f and 3b:

1. Find the volume of the solid whose base is the region bounded between the graphs y = x2 and y = 1 and whose cross sections taken perpen- dicuar to the y axis are: (a) squares; (b) equilateral triangles. 2. Set up (but do not evaluate) the formula to find the volume of the solid of revolution generated by region bounded by r = y', the r and y axes, and y = 1. about the line (a) y = 1; (b) y = 2; (c) = = -1; (d) r = 2; (e) r= 1; (f)