<p>I am not a harvard student but I would recommend 21a or 25. If you actually enjoy math. Especially hard math then try it. But becareful wtih 25. Ive heard its a “poor man’s version of math 55” which is still pretty dang hard.</p>
<p>I am not a harvard student but I would recommend 21a or 25. If you actually enjoy math. Especially hard math then try it. But becareful wtih 25. Ive heard its a “poor man’s version of math 55” which is still pretty dang hard.</p>