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Old 03-03-2002, 09:12 PM   #3
Xantar
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I'm not sure what your problem with dy/dx or dx/dy is. But in any case, the equation is a graph for a semi-circle with radius 4 sitting entirely above the x-axis. So to find the area, just find the area of a circle with radius 4 and divide by 2.

There might be a way to integrate that kind of equation, but I never bothered.
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