Calculus
posted by AJ .
Find the centroid of the region bounded by the curve sin x on the interval (0, pi) and the xaxis.
Please help

Calculus 
Mgraph
Let C(x,y)centroid. Obviously, x=pi/2
The area of the region=2
y=(1/2)(1/2)(integral from 0 to pi) sin^2(x)dx=pi/8
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