[URGENT]ow to solve this? Do i need to use any theorem to solve this such as divergence theorem? the first question need to find the volume of the sphere that a part in up and bottom being cut( z-axis) and the middle is a hole( cylindrical shape ) the second question need to find the volume of a cone with a cylinder. for both question, the answer is not need completely solve, just need find the main equation for finding the volume.( I mean just find the range for integration by using dx,dy,dz or using polar coordinate ) Equation for finding volume equation using polar coordinate is prefered.