6. Consider again the integral I = -LS." 3+4-x2 y2 dy dx from Question 5. You could evaluate I by direct calculation, but instead you will try two different ways. (6a) Interpret I as a volume of a solid T C R. Define the solid T using set builder notation, and includ sketches in R to support your argument. Compute the volume using geometry of known solids in R Do not evaluate any integrals.