I don't understand the following results from Solve.
(%i4) y=2*x;
(%o4) y=2*x
(%i5) y=sqrt(x^2+3);
(%o5) y=sqrt(x^2+3)
(%i6) solve([%o4,%o5],[x,y]);
(%i6) solve([%o4,%o5],[x,y]);`
algsys' cannot solve - system too complicated.
-- an error. To debug this try debugmode(true);
The manual solution provides x=+/- 1. A quick look at the plot shows that
x=-1 is not valid. Why does solve have a problem?
Thanks
Ron