I prefer using the wotksheet envirionment

How do I make Maple input the default and 2D output the default?

SImilartly how do I change the default font size?

Why won't simplify give the obvious result and Why does testeq give a Fail result in this case?

with(RealDomain);

assume(0<f,0<g);

simplify(f*sqrt(g/f));

testeq(f*sqrt(g/f)=sqrt(f)*sqrt(g))