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Mathematics 9 Online
OpenStudy (anonymous):

Quick Question about this question! A thin wire has the shape of the first-quadrant part of the circle with center the origin and radius a. If the density function is rho(x,y)=kxy, find the mass and center of mass of the wire.

OpenStudy (anonymous):

I know it's a line integral. My question is my solution manual says that it is the line integral from 0 to pi, but the first quadrant is 0 to pi/2 Am I missing something or is the manual wrong?

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