Vectorial calculus | double integrals polar coordinates

2. Use polar coordinates to determine the volume of the siven solid. under the cone z= lxzty? and over the ring 15 x2 + 4 2 2 4 3. Use polor coordinates to determine the volume of the riven solid. Over the cone 2 = 1xz+yz and under the sphere x2+ yz+ 2"= 49