Find the area of an ellips
H.Tahsiri
An ellips has a major axis "a" and a minor axis "b" as shown.

I also remember the ellips can be generated by an equation given by
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The region D is described as a type dy dx region by:
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Its area is therefore
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Could I use Mathematic Enter exactly the following expressions into the Mathematica front end and hit the enter key . Magic: Here is the answer.

Another way .
