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Simplifying Expressions containing SQRT


Hi everybody!

Strange things do happen!

Mathematica4s ability to simplify equitations containing square roots
seems to be quite weak. Perhaps I just do not know enough about these
things, but I did read the manual. An example:

             Sqrt [ R ( R - x ) ] Sqrt [ ( R - x ) x ] / ( R x - R^2 )


equals Sqrt[ R / x ], but I can4t get Mathematica figure that out.

I tried PowerExpand, Factor, Collect, Simplify and almost everything
else in various orders. Nothing worked! What can I do?

I do appreciate every helpful hint. Thank you very much.


Eric von Lieres                         lieres at studm.hrz.uni-siegen.de

------------------------------------------------------------
Eric von Lieres               lieres at studm.hrz.uni-siegen.de



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