treatment of square roots. oof

• Subject: treatment of square roots. oof
• From: Richard Fateman
• Date: Tue, 06 Sep 2011 13:25:10 -0700

f(x):=x/sqrt(1+sqrt(x));
g(x):=sqrt(x^2/(1+sqrt(x)));

f(x)-g(x) returns 0

f(3)-g(3) returns 0

f(-3) - g(-3)  is NOT zero.

indeed, f(x)-g(x) is not zero if x<0....  is there a remedy?

RJF

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