There is a nice equation made by Nobuo Yamamoto which describes the curve of an egg and it is:(adsbygoogle = window.adsbygoogle || []).push({});

(x^2 + y^2)^2 = ax^3 + (3/10)xy^2, whereais the length of the major axis of the egg.

Solve this equation for y, we get:

y=+/- sqrt((3/20)ax - x^2 + xsqrt((7/10)ax + (9/400)a^2))

When I rotate the function around the x-axis by 2(pi), the result is a negative volume of (-1)((pi)(a^3))/12.

I don't know what I am doing wrong, or how I can fix this problem.

Can someone please help me out on this?

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# Negative Volume of Revolution?

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