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QUESTION
A lamina occupies the part of the disk x^2 +y^2 lt;(or equal to ) 1 in the first quadrant and the density at each point is given by the function
A lamina occupies the part of the disk x^2 +y^2 <(or equal to ) 1 in the first quadrant and the density at each point is given by the function rho(x,y)= 3(x^2 +y^2). What is the total mass? WHere is the center of mass?
