<p>nocloud:</p>
<p>Don’t be worried. I placed out of all of Ma1 and number two on that 0.9 set was still very difficult for me.</p>
<p>If you can mostly manage the problems on the regular Ma1a set, that’s a great sign already; most students spend inordinate amounts of time on it, and have to collobarate to get by. </p>
<p>In fact, the Ma1a sets are considerably harder than the ones in Ma1b, and in my opinion Ma2a.</p>
<p>Edit: But yeah, learning induction and proofs is definitely a good idea.</p>