I don't understand when do we need polar coordinates or if we don't need them how to start solving this. I know we need to find volume of the small square inside of the solid by derivation by x and by y times the height. What should that be in this case?
2026-04-02 12:07:25.1775131645
Find the volume of the solid surrounded by planes x+2y+z=2, x=2y x=0 and z=0.
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