22 Jan
2018
22 Jan
'18
7:31 p.m.
Some limit problems, e.g. lim x-->9 (sqrt(x+7) - 4) / (x-9). On Mon, Jan 22, 2018 at 8:11 PM, James Propp <jamespropp@gmail.com> wrote:
Can anyone think of a problem for which the trick is that you should rationalize numerators rather than denominators? Or more generally leave combinations of surds in some nonstandard but tactically helpful form?
Jim Propp _______________________________________________ math-fun mailing list math-fun@mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/math-fun